Scan Recognition Format File (.cht)

From c07d0c2d2f6f7b0eb6e92cc6204bf05037957e82 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Mon, 1 Sep 2014 15:43:52 +0200 Subject: Imported Upstream version 1.6.3 --- doc/cht_format.html | 1192 ++++++++++++++++++++++++++------------------------- 1 file changed, 619 insertions(+), 573 deletions(-) (limited to 'doc/cht_format.html') diff --git a/doc/cht_format.html b/doc/cht_format.html index 1e02db1..80a3e9e 100644 --- a/doc/cht_format.html +++ b/doc/cht_format.html @@ -1,576 +1,622 @@ - - Scan Recognition Format File (.cht) - - - - -

Description of the .cht format

-[This is a rather inflexible format, that should really be replaced -with a CGATS style file.]
-
-The .cht format file is used -to hold the image recognition information that allows the scanin program to align the input image with -the specified sample boxes.
-
-A raw .cht file can be -produced by running scanin -with the -g option, although this will -then need -cleaning up manually, using a text editor. The cleanup consists of -deleting -any unwanted reference lines from the XLIST and YLISTs, adding the the -sample -box references, and possibly adding the expected sample values.
-
-The .cht image recognition -file is usually set up to recognized a scanned test chart that includes -the edges of the chart itself, not -a cropped version of the chart that excludes the edges of the chart -itself. This is to allow scanin -to be used with scans that have just be roughly cropped, without -requiring that a scan be treated in detail with an application such as -Adobe Photoshop.
-
-The keywords and associated data must be used in the following order: BOXES, -BOX_SHRINK, REF_ROTATION, XLIST, YLIST -and EXPECTED.
-
-The physical units used for boxes and edge lists are arbitrary units -(i.e. -pixels as generated by scanin -g, but could be mm, inches etc. if -created - some other way), the only requirement is that the sample box -definitions need to agree with the X/YLIST definitions. Typically if a -scanned chart is used to build the reference, the units will be pixels -of the scanned chart.
-
-The BOXES keyword introduces the list of diagnostic and sample -boxes. -The integer following this keyword must be the total number of -diagnostic -and sample boxes, but not -including any fiducual marks. The lines following the BOXES keyword must -then -contain -the fiducial mark, diagnostic or sample box definitions. Each box -definition line -consists -of 11 space separated parameters, and can generate a grid of sample or -diagnostic -boxes:
-
-   kl lxs lxe lys lye w h xo yo xi yi
-
-with the following usage:
-
-   kl is a key letter.
-
-        F -is used to define four fiducial mZarks that may be used for manual -alignment of an image to the target. The four marks are nominally a -top left mark, a top right mark, bottom right mark and a bottom left -mark. The parameters are labeled as follows:
-
-        F _ _ x0 y0 x1 y1 x2 y2 -x3 y3
-
-        Where the first two -parameters are not used, and a '_' character should be used as -a place holder, and the follows the X and Y coordinates for the four -fiducial marks. Typically fiducial marks are chosen -to be at the corners of the overall bounding box, or at corner cross -marks on the chart etc. Fiducial marks may be omitted, but in this case -manual alignment cannot be used.
-
-       D is used for a diagnostic -box which will show up in the diagnostic raster output, but is not used -as -a sample box. The label information can be arbitrary.
-
-       X is used for a sequence -of boxes in which the X label comes first in the concatenated sample -box label.
-
-       Y is used for a sequence -of boxes in which the Y label comes first in the concatenated sample -box label.
-
-       Boxes are created incrementing in -the X direction fastest, and the Y direction slowest.
-
-   lxs is the X axis starting label. This is -generally a letter or number, and it will be incremented appropriately -to reach lxe
-
-   lxe is the X axis ending label. When the X -label reaches this this value (inclusively), the iteration in the X -direction will reset.
-
-   lys is the Y axis starting label. This is -generally a letter or number, and it will be incremented appropriately -to reach lye
-
-   lye is the Y axis ending label. When the Y -label reaches this this value (inclusively), the iteration through the -boxes will end.
-
-   The X & Y labels will be concatenated to form -the sample box label.
-
-   A sample label that consists of the character '_' is -treated as a null label (useful for an array that only iterates in one -direction).
-
-   w, h are the width and height of each -box in the array.
-
-   xo, yo are the origin of the top -left -of the array.
-
-   xi, yi are the increments between -each -box in the array.
-
-A blank line should follow the last box definition line.
-
-The keyword BOX_SHRINK marks the definition of how much each -sample -box should be shrunk on each edge before sampling the pixel values. -This -allows the sample boxes to be defined at their edges, while allowing a -safety -margin for the pixels actually sampled. The units are the same -arbitrary units -used for the sample box definitions.
-
-A blank line should follow this keyword.
-
-The optional REF_ROTATION keyword indicates the rotation in -radians -clockwise of the reference image when the edge lists were generated. -This -amount of rotation is undone to the image before applying the sample -box -location information. The rotation is about the origin -(the -origin is assumed to be upper left corner). If omitted, the reference -rotation -is assumed to be 0.0
-
-A blank line should follow this keyword.
-
-The XLIST is a list of vertical edge reference "ticks", along -the -X axis. Ticks are just edge transitions, typically being each edge of -the sample boxes, but should include edges of any features that have -significant width and a length that is at least 50% of the available -space. It is these edge ticks that are used to locate the reference -cells position within the input raster. The integer after the keyword -"XLIST" is the number of entries -in -the list. The first number in the column is the offset of the tick from -the -origin, the second number is used to improve the correlation by -representing -the strength of that "tick" relative to the strongest tick which will -have -a value 1.0. Strength is measured by the relative length of the edge.
-
-The third number represents the relative number of times this "tick" is -crossed by lines in the other direction. A line is regarded as crossing -if part of it is closer to the "tick" line that half the distance to -the next tick line. The number is normalized so that the largest -crossing count has a weight of -1.0. This may be set to 1.0 if it is not known or easily computed.
-
-A blank line should follow the last XLIST edge definition.
-
-The YLIST is same format and details as the XLIST, used -for -horizontal edges.
-
-The EXPECTED keyword introduces an optional list of approximate -expected -sample -box color values, allowing better identification of the possible -rotation -of a chart, particularly if it has no asymmetric patch shapes or -locations -in the chart. Following the keyword should either be XYZ or LAB, -depending on the color space used to describe the reference values, -then -an integer indicating the number of entries in the list.
-
-Each following expected color entry consists of four values. The first -is -the sample box label, which should correspond to one of those defined -by -the BOXES entry above. It is an error if no corresponding box -has -been defined. The remaining three values are the approximate XYZ or -L*a*b* -color value expected for that sample box. The XYZ values are assumed to -be -scaled to a maximum Y value of 100. An expected color value doesn't -have -to be provided for every defined sample box, nor is it expected to be -accurate - it just has to represent the approximate expected color. -(Actual chart reference values are provided as a separate CGATS file to -scanin).
-
-A blank line should follow the last EXPECTED box value.
-
-
-

-The following is an example .cht file, suitable for a typical Q60 IT8 -scan target.
-- BOXES 290 - F _ _ _ _ 1 1 615.5 1.5 615 409 - D ALL ALL _ _ 615 409 1 1 0 0 - D MARK MARK _ _ 14 14 1 1 0 0 - Y 01 22 A L 25.625 25.625 26.625 26.625 25.625 25.625 - X GS00 GS23 _ _ 25.625 51.25 0.0 358.75 25.625 0.0 - -BOX_SHRINK 3.0 - -REF_ROTATION -0.002006 - -XLIST 32 - 1.799625 1.000000 0.312500 - 27.064987 0.874039 0.750000 - 52.592403 0.133439 0.687500 - 78.196610 0.264191 0.687500 - 104.117756 0.165427 0.937500 - 129.377994 0.844432 0.937500 - 155.144274 0.501218 0.875000 - 180.839181 0.491428 0.937500 - 206.359758 0.212384 0.937500 - 232.038808 0.851851 0.937500 - 257.854725 0.162956 0.625000 - 283.552463 0.101243 0.812500 - 300.534000 0.024750 0.812500 - 309.507688 0.093829 1.000000 - 334.711314 0.856821 1.000000 - 360.428194 0.787677 1.000000 - 385.849730 0.748130 0.937500 - 386.650071 0.039487 0.687500 - 394.630372 0.024725 0.687500 - 411.835654 0.802501 0.750000 - 414.017731 0.041974 0.937500 - 437.133504 0.674062 0.937500 - 437.975355 0.103714 1.000000 - 462.938460 0.671643 1.000000 - 463.880560 0.093836 0.937500 - 488.517995 0.679022 1.000000 - 514.338544 0.760511 1.000000 - 540.037492 0.111108 0.625000 - 565.856396 0.133330 0.562500 - 591.114717 0.565475 0.562500 - 603.447516 0.032097 0.312500 - 615.984915 0.829608 0.250000 - -YLIST 22 - 2.477956 0.993407 0.142857 - 12.988903 0.016393 0.190476 - 14.739109 0.036082 0.190476 - 26.746171 0.911487 0.428571 - 52.537114 0.303282 0.904762 - 78.060317 0.585303 0.857143 - 103.498271 0.606862 0.761905 - 128.994535 0.567266 0.761905 - 154.483041 0.550814 0.714286 - 179.935985 0.623055 0.666667 - 205.552940 0.350826 0.714286 - 212.051372 0.016393 0.714286 - 231.153547 0.824618 0.857143 - 256.697418 0.744268 0.952381 - 282.145841 0.736126 0.904762 - 307.899015 0.536075 0.952381 - 333.262903 0.903282 0.809524 - 340.217754 0.019722 0.190476 - 344.988867 0.019671 0.095238 - 346.988885 0.018032 0.095238 - 358.840278 0.999967 1.000000 - 409.201393 1.000000 0.000000 - -EXPECTED XYZ 264 - A1 3.85 3.22 1.9 - A2 4.89 3.27 1.6 - A3 5.87 3.31 1.33 - A4 6.3 3.38 1.19 - A5 13.01 11.44 7.64 - A6 16.14 11.99 6.81 - A7 19.35 12.41 6.06 - A8 20.41 11.97 5.3 - A9 43.5 42.81 32.65 - A10 45.58 42.37 30.95 - A11 48.99 43.2 29.9 - A12 50.73 44.02 29.96 - A13 74.46 78.76 66.06 - A14 75.66 76.42 64.08 - A15 78.36 81.34 65.41 - A16 70.52 73.3 59.16 - A17 74.98 75.98 60.69 - A18 72.85 77.3 60.25 - A19 73.09 75.52 64.54 - B1 3.47 3.08 1.41 - B2 4.41 3.25 0.9 - B3 5.04 3.23 0.58 - B4 5.19 3.11 0.47 - B5 13.36 11.59 5.56 - B6 15.97 12.03 3.69 - B7 19.2 12.49 2.2 - B8 19.73 11.52 1.17 - B9 42.19 41.84 29.34 - B10 44.83 42.17 25.93 - B11 48.06 42.9 23.01 - B12 49.63 43.08 21.34 - B13 66.21 72.54 64.61 - B14 70.16 67.1 60.33 - B15 75.46 78.69 51.58 - B16 57.47 59.58 47.66 - B17 68.33 66.45 49.05 - B18 63.89 70.29 51.3 - B19 61.12 62.16 59.79 - C1 4.97 4.75 1.98 - C2 5.18 4.65 1.23 - C3 5.51 4.58 0.71 - C4 5.77 4.61 0.67 - C5 24.57 23.44 10.14 - C6 28.1 24.64 5.22 - C7 31.15 25.28 2.2 - C8 30.85 23.68 1.35 - C9 49.16 49.36 32.37 - C10 51.72 50.72 26.53 - C11 55.24 53.14 21.93 - C12 56.87 53.62 18.46 - C13 57.68 65.65 62.7 - C14 63.46 56.66 55.49 - C15 73 76.11 40.78 - C16 44.73 46.38 36.8 - C17 60.64 55.73 38.1 - C18 52.15 60.27 41.5 - C19 48.13 49.18 54.38 - D1 4.19 4.41 1.93 - D2 4.48 4.72 1.24 - D3 4.55 4.78 0.8 - D4 4.32 4.53 0.78 - D5 27.33 28.55 12.95 - D6 28.68 30.04 7.25 - D7 29.51 31.01 3.41 - D8 27.55 28.44 1.83 - D9 56.06 58.19 38.21 - D10 56.03 58.46 30.02 - D11 56.2 59.33 24.44 - D12 56.19 59.41 19.14 - D13 48.21 57.42 59.53 - D14 58.18 49.14 51.36 - D15 70.98 73.73 33.63 - D16 34.31 35.73 28.22 - D17 54.27 47.53 29.58 - D18 41.67 50.64 32.28 - D19 36.95 37.82 48.09 - E1 4.15 4.75 2.03 - E2 4 4.98 1.37 - E3 3.3 4.49 0.86 - E4 3.11 4.3 0.86 - E5 13.11 14.9 7.06 - E6 12.26 15.23 4.18 - E7 11.53 15.57 2.27 - E8 9.69 13.74 1.51 - E9 39.15 42.08 27.33 - E10 37.43 41.51 22.23 - E11 36.99 42.5 18.85 - E12 36.4 42.58 16.27 - E13 39.97 49.81 56.15 - E14 52.08 41.07 46.36 - E15 68.71 70.76 26.45 - E16 25.7 26.97 21.28 - E17 48.53 40.6 22 - E18 31.62 40.82 23.35 - E19 31.19 31.19 43.4 - F1 1.51 1.91 1.06 - F2 1.29 2.04 0.98 - F3 1.16 2.09 0.82 - F4 1.14 2.04 0.8 - F5 6.53 8.25 5.13 - F6 5.61 8.66 4.38 - F7 4.6 8.77 3.7 - F8 3.45 7.63 2.78 - F9 37.8 41.07 30.91 - F10 35.92 40.76 29.03 - F11 35.42 41.99 29.07 - F12 34 41.8 28 - F13 32.13 42.12 51.99 - F14 45.72 33.34 40.77 - F15 66.26 67.29 19.65 - F16 17.02 18.07 14.4 - F17 41.59 32.53 15.16 - F18 26.26 35.26 18.81 - F19 24.3 23.6 37.48 - G1 2.31 3 2.27 - G2 2 3.21 2.58 - G3 1.66 3.21 2.75 - G4 1.58 3.03 2.6 - G5 8.99 11.08 8.79 - G6 7.68 11.3 9.56 - G7 6.52 11.5 10.2 - G8 5.5 10.85 10.55 - G9 38.29 41.75 33.45 - G10 35.83 41.16 34.11 - G11 34.56 41.83 35.63 - G12 33.69 42.14 36.7 - G13 25.95 35.68 48 - G14 40.6 27.62 36.14 - G15 63.72 63.63 14.35 - G16 10.85 11.82 9.58 - G17 37.23 27.64 11.62 - G18 20.28 28.97 14.15 - G19 17.7 16.74 31.7 - H1 2.56 3.04 2.92 - H2 2.34 3.2 4.12 - H3 2.12 3.28 5.43 - H4 2.06 3.18 5.29 - H5 10.07 11.6 11.24 - H6 9.01 11.68 14.81 - H7 8.22 12 19.42 - H8 7.25 11.55 21.45 - H9 39.25 42.31 36.81 - H10 37.58 41.85 40.37 - H11 37.16 43.07 45.79 - H12 36.27 43.78 49.47 - H13 21.47 30.78 44.22 - H14 36.49 23.35 32.38 - H15 61.58 60.55 10.95 - H16 8.21 8.71 6.91 - H17 33.04 23.26 8.38 - H18 16.22 24.35 10.41 - H19 12.86 11.84 26.82 - I1 4.22 4.44 5.28 - I2 4.35 4.48 8.36 - I3 4.4 4.44 11.94 - I4 4.48 4.58 12.17 - I5 15.15 15.78 15.23 - I6 14.56 15.12 19.52 - I7 14.37 14.81 24.48 - I8 14.11 14.76 30.03 - I9 41.03 42.58 36.94 - I10 40.85 42.23 40.73 - I11 40.86 42.33 45.05 - I12 41.31 42.73 47.77 - I13 17.26 25.93 40.23 - I14 32.66 19.63 28.81 - I15 59.37 57.18 7.79 - I16 4.97 5.32 4.32 - I17 28.62 18.88 5.48 - I18 11.58 18.98 7.25 - I19 9.58 8.34 22.87 - I20 0.45 0.4 0.33 - I21 2.28 1.78 0.98 - I22 2.37 1.95 0.85 - J1 2.15 1.9 2.6 - J2 2.57 2 4.72 - J3 2.93 1.95 8.1 - J4 3.15 1.92 10.76 - J5 11.73 11.6 11.81 - J6 12.98 11.93 16.19 - J7 13.91 12.07 20.95 - J8 14.01 11.59 24.35 - J9 40.75 41.22 36.34 - J10 41.26 41.07 39.74 - J11 42.63 41.68 44.51 - J12 44.02 41.78 49.25 - J13 13.82 21.69 35.98 - J14 28.87 16.33 25.08 - J15 56.04 52.29 4.97 - J16 2.46 2.63 2.29 - J17 24.04 14.75 3.15 - J18 8.12 14.49 4.55 - J19 5.98 4.79 17.76 - J20 8.26 5.37 1.04 - J21 11.52 7.81 1.62 - J22 14.67 10.72 2.6 - K1 5.63 4.7 4.86 - K2 6.74 4.58 7.23 - K3 8.04 4.48 9.73 - K4 9.39 4.76 11.79 - K5 16.66 15.39 14.44 - K6 18.72 15.18 18.23 - K7 21.56 15.5 22.97 - K8 23 15.02 25.37 - K9 42.5 42.02 36.05 - K10 44.55 41.63 39.71 - K11 47.19 41.96 44.03 - K12 49.9 43.14 47.21 - K13 10.61 17.44 31.24 - K14 24.84 13.19 21 - K15 53.12 48.05 3.19 - K16 1.05 1.14 1.13 - K17 19.93 11.34 1.67 - K18 5.3 10.47 2.73 - K19 3.95 2.76 13.94 - K20 30.61 26.43 11.04 - K21 34.91 29.6 11.78 - K22 38.95 34.57 18.4 - L1 3.88 3.12 2.32 - L2 4.93 3.2 2.69 - L3 5.75 3.14 3.02 - L4 7.31 3.79 3.4 - L5 13.29 11.54 9.39 - L6 16.22 11.73 10.32 - L7 19.95 12.08 12.06 - L8 20.79 11.31 12.01 - L9 43.22 42.09 33.78 - L10 45.52 41.88 34.65 - L11 49.04 42.87 35.98 - L12 51.03 43.83 37.78 - L13 7.45 12.77 25.59 - L14 21.26 10.76 17.73 - L15 49.45 43.12 2.14 - L16 0.47 0.49 0.5 - L17 16.04 8.49 0.78 - L18 2.91 6.5 1.39 - L19 2.5 1.45 10.28 - L20 38.7 33.98 20.86 - L21 39.36 35.23 21.23 - L22 41.36 38.77 23.51 - GS0 79.47 82.51 69.04 - GS1 72.62 74.94 59.17 - GS2 63.15 65.11 51.57 - GS3 54.72 56.51 45.03 - GS4 48.1 49.81 39.24 - GS5 42.22 43.64 34.45 - GS6 37.33 38.7 30.5 - GS7 32.38 33.61 26.11 - GS8 27.56 28.7 22.11 - GS9 22.5 23.4 17.99 - GS10 18.77 19.55 14.83 - GS11 15.48 16.08 12.04 - GS12 12.69 13.29 9.98 - GS13 10.35 10.81 7.97 - GS14 8.39 8.77 6.37 - GS15 6.45 6.79 4.97 - GS16 4.95 5.18 3.7 - GS17 3.58 3.82 2.76 - GS18 2.76 2.89 2.06 - GS19 1.97 2.08 1.45 - GS20 1.22 1.31 0.98 - GS21 1 1.05 0.74 - GS22 0.87 0.89 0.65 - GS23 0.34 0.32 0.32 - -
--
-
- + + Scan Recognition Format File (.cht) + + + + +

Description of the .cht format

+ [This is a rather inflexible format, that should really be replaced + with a CGATS style file.]
+
+ The .cht format file is + used + to hold the image recognition information that allows the scanin program to align the input image + with + the specified sample boxes.
+
+ A raw .cht file can be + produced by running scanin + with the -g option, although this will + then need + cleaning up manually, using a text editor. The cleanup consists of + deleting + any unwanted reference lines from the XLIST and YLISTs, adding the + the + sample + box references, and possibly adding the expected sample values.
+
+ The .cht image recognition + file is usually set up to recognized a scanned test chart that + includes + the edges of the chart itself, not + a cropped version of the chart that excludes the edges of the chart + itself. This is to allow scanin + to be used with scans that have just be roughly cropped, without + requiring that a scan be treated in detail with an application such + as + Adobe Photoshop.
+
+ The keywords and associated data must be used in the following + order: BOXES, + BOX_SHRINK, REF_ROTATION, XLIST, YLIST + and EXPECTED.
+
+ The physical units used for boxes and edge lists are arbitrary units + (i.e. + pixels as generated by scanin -g, but could be mm, inches etc. if + created + some other way), the only requirement is that the sample box + definitions need to agree with the X/YLIST definitions. Typically if + a + scanned chart is used to build the reference, the units will be + pixels + of the scanned chart.
+
+ The BOXES keyword introduces the list of diagnostic and + sample + boxes. + The integer following this keyword must be the total number of + diagnostic + and sample boxes, but not + including any fiducual marks. The lines following the BOXES keyword + must + then + contain + the fiducial mark, diagnostic or sample box definitions. Each box + definition line + consists + of 11 space separated parameters, and can generate a grid of sample + or + diagnostic + boxes:
+
+    kl lxs lxe lys lye w h xo yo xi yi
+
+ with the following usage:
+
+    kl is a key letter.
+
+         F + is used to define four fiducial marks that may be used for manual + alignment of an image to the target. The four marks are nominally a + top left mark, a top right mark, bottom right mark and a bottom left + mark (ie. clockwise order from top left). The parameters are labeled + as follows:
+
+         F _ _ x0 y0 x1 y1 x2 + y2 + x3 y3
+
+         Where the first two + parameters are not used, and a '_' character should be used as + a place holder, and the follows the X and Y coordinates for the four + fiducial marks. Typically fiducial marks are + chosen + to be at the corners of the overall bounding box, or at corner cross + marks on the chart etc. Fiducial marks may be omitted, but in this + case + manual alignment cannot be used.
+
+        D is used for a + diagnostic + box which will show up in the diagnostic raster output, but is not + used + as + a sample box. The label information can be arbitrary.
+
+        X is used for a + sequence + of boxes in which the X label comes first in the concatenated sample + box label.
+
+        Y is used for a + sequence + of boxes in which the Y label comes first in the concatenated sample + box label.
+
+        Boxes are created incrementing + in + the X direction fastest, and the Y direction slowest.
+
+    lxs is the X axis starting label. This is + generally a letter or number, and it will be incremented + appropriately + to reach lxe
+
+    lxe is the X axis ending label. When the X + label reaches this this value (inclusively), the iteration in the X + direction will reset.
+
+    lys is the Y axis starting label. This is + generally a letter or number, and it will be incremented + appropriately + to reach lye
+
+    lye is the Y axis ending label. When the Y + label reaches this this value (inclusively), the iteration through + the + boxes will end.
+
+    The X & Y labels will be concatenated to form + the sample box label.
+
+    A sample label that consists of the character '_' + is + treated as a null label (useful for an array that only iterates in + one + direction).
+
+    w, h are the width and height of + each + box in the array.
+
+    xo, yo are the origin of the top + left + of the array.
+
+    xi, yi are the increments between + each + box in the array.
+
+ A blank line should follow the last box definition line.
+
+ The keyword BOX_SHRINK marks the definition of how much each + sample + box should be shrunk on each edge before sampling the pixel values. + This + allows the sample boxes to be defined at their edges, while allowing + a + safety + margin for the pixels actually sampled. The units are the same + arbitrary units + used for the sample box definitions.
+
+ A blank line should follow this keyword.
+
+ The optional REF_ROTATION keyword indicates the rotation in + radians + clockwise of the reference image when the edge lists were generated. + This + amount of rotation is undone to the image before applying the sample + box + location information. The rotation is about the origin + (the + origin is assumed to be upper left corner). If omitted, the + reference + rotation + is assumed to be 0.0
+
+ A blank line should follow this keyword.
+
+ The XLIST is a list of vertical edge reference "ticks", + along + the + X axis. Ticks are just edge transitions, typically being each edge + of + the sample boxes, but should include edges of any features that have + significant width and a length that is at least 50% of the available + space. It is these edge ticks that are used to locate the reference + cells position within the input raster. The integer after the + keyword + "XLIST" is the number of entries + in + the list. The first number in the column is the offset of the tick + from + the + origin, the second number is used to improve the correlation by + representing + the strength of that "tick" relative to the strongest tick which + will + have + a value 1.0. Strength is measured by the relative length of the + edge.
+
+ The third number represents the relative number of times this "tick" + is + crossed by lines in the other direction. A line is regarded as + crossing + if part of it is closer to the "tick" line that half the distance to + the next tick line. The number is normalized so that the largest + crossing count has a weight of + 1.0. This may be set to 1.0 if it is not known or easily computed.
+
+ A blank line should follow the last XLIST edge definition.
+
+ The YLIST is same format and details as the XLIST, + used + for + horizontal edges.
+
+ The EXPECTED keyword introduces an optional list of approximate + expected + sample + box color values, allowing better identification of the possible + rotation + of a chart, particularly if it has no asymmetric patch shapes or + locations + in the chart. Following the keyword should either be XYZ or + LAB, + depending on the color space used to describe the reference values, + then + an integer indicating the number of entries in the list.
+
+ Each following expected color entry consists of four values. The + first + is + the sample box label, which should correspond to one of those + defined + by + the BOXES entry above. It is an error if no corresponding + box + has + been defined. The remaining three values are the approximate XYZ or + L*a*b* + color value expected for that sample box. The XYZ values are assumed + to + be + scaled to a maximum Y value of 100. An expected color value doesn't + have + to be provided for every defined sample box, nor is it expected to + be + accurate - it just has to represent the approximate expected color. + (Actual chart reference values are provided as a separate CGATS file + to + scanin).
+
+ A blank line should follow the last EXPECTED box value.
+
+
+

+ The following is an example .cht file, suitable for a typical Q60 + IT8 + scan target.
+ + BOXES 290 + F _ _ _ _ 1 1 615.5 1.5 615 409 + D ALL ALL _ _ 615 409 1 1 0 0 + D MARK MARK _ _ 14 14 1 1 0 0 + Y 01 22 A L 25.625 25.625 26.625 26.625 25.625 25.625 + X GS00 GS23 _ _ 25.625 51.25 0.0 358.75 25.625 0.0 + + BOX_SHRINK 3.0 + + REF_ROTATION -0.002006 + + XLIST 32 + 1.799625 1.000000 0.312500 + 27.064987 0.874039 0.750000 + 52.592403 0.133439 0.687500 + 78.196610 0.264191 0.687500 + 104.117756 0.165427 0.937500 + 129.377994 0.844432 0.937500 + 155.144274 0.501218 0.875000 + 180.839181 0.491428 0.937500 + 206.359758 0.212384 0.937500 + 232.038808 0.851851 0.937500 + 257.854725 0.162956 0.625000 + 283.552463 0.101243 0.812500 + 300.534000 0.024750 0.812500 + 309.507688 0.093829 1.000000 + 334.711314 0.856821 1.000000 + 360.428194 0.787677 1.000000 + 385.849730 0.748130 0.937500 + 386.650071 0.039487 0.687500 + 394.630372 0.024725 0.687500 + 411.835654 0.802501 0.750000 + 414.017731 0.041974 0.937500 + 437.133504 0.674062 0.937500 + 437.975355 0.103714 1.000000 + 462.938460 0.671643 1.000000 + 463.880560 0.093836 0.937500 + 488.517995 0.679022 1.000000 + 514.338544 0.760511 1.000000 + 540.037492 0.111108 0.625000 + 565.856396 0.133330 0.562500 + 591.114717 0.565475 0.562500 + 603.447516 0.032097 0.312500 + 615.984915 0.829608 0.250000 + + YLIST 22 + 2.477956 0.993407 0.142857 + 12.988903 0.016393 0.190476 + 14.739109 0.036082 0.190476 + 26.746171 0.911487 0.428571 + 52.537114 0.303282 0.904762 + 78.060317 0.585303 0.857143 + 103.498271 0.606862 0.761905 + 128.994535 0.567266 0.761905 + 154.483041 0.550814 0.714286 + 179.935985 0.623055 0.666667 + 205.552940 0.350826 0.714286 + 212.051372 0.016393 0.714286 + 231.153547 0.824618 0.857143 + 256.697418 0.744268 0.952381 + 282.145841 0.736126 0.904762 + 307.899015 0.536075 0.952381 + 333.262903 0.903282 0.809524 + 340.217754 0.019722 0.190476 + 344.988867 0.019671 0.095238 + 346.988885 0.018032 0.095238 + 358.840278 0.999967 1.000000 + 409.201393 1.000000 0.000000 + + EXPECTED XYZ 264 + A1 3.85 3.22 1.9 + A2 4.89 3.27 1.6 + A3 5.87 3.31 1.33 + A4 6.3 3.38 1.19 + A5 13.01 11.44 7.64 + A6 16.14 11.99 6.81 + A7 19.35 12.41 6.06 + A8 20.41 11.97 5.3 + A9 43.5 42.81 32.65 + A10 45.58 42.37 30.95 + A11 48.99 43.2 29.9 + A12 50.73 44.02 29.96 + A13 74.46 78.76 66.06 + A14 75.66 76.42 64.08 + A15 78.36 81.34 65.41 + A16 70.52 73.3 59.16 + A17 74.98 75.98 60.69 + A18 72.85 77.3 60.25 + A19 73.09 75.52 64.54 + B1 3.47 3.08 1.41 + B2 4.41 3.25 0.9 + B3 5.04 3.23 0.58 + B4 5.19 3.11 0.47 + B5 13.36 11.59 5.56 + B6 15.97 12.03 3.69 + B7 19.2 12.49 2.2 + B8 19.73 11.52 1.17 + B9 42.19 41.84 29.34 + B10 44.83 42.17 25.93 + B11 48.06 42.9 23.01 + B12 49.63 43.08 21.34 + B13 66.21 72.54 64.61 + B14 70.16 67.1 60.33 + B15 75.46 78.69 51.58 + B16 57.47 59.58 47.66 + B17 68.33 66.45 49.05 + B18 63.89 70.29 51.3 + B19 61.12 62.16 59.79 + C1 4.97 4.75 1.98 + C2 5.18 4.65 1.23 + C3 5.51 4.58 0.71 + C4 5.77 4.61 0.67 + C5 24.57 23.44 10.14 + C6 28.1 24.64 5.22 + C7 31.15 25.28 2.2 + C8 30.85 23.68 1.35 + C9 49.16 49.36 32.37 + C10 51.72 50.72 26.53 + C11 55.24 53.14 21.93 + C12 56.87 53.62 18.46 + C13 57.68 65.65 62.7 + C14 63.46 56.66 55.49 + C15 73 76.11 40.78 + C16 44.73 46.38 36.8 + C17 60.64 55.73 38.1 + C18 52.15 60.27 41.5 + C19 48.13 49.18 54.38 + D1 4.19 4.41 1.93 + D2 4.48 4.72 1.24 + D3 4.55 4.78 0.8 + D4 4.32 4.53 0.78 + D5 27.33 28.55 12.95 + D6 28.68 30.04 7.25 + D7 29.51 31.01 3.41 + D8 27.55 28.44 1.83 + D9 56.06 58.19 38.21 + D10 56.03 58.46 30.02 + D11 56.2 59.33 24.44 + D12 56.19 59.41 19.14 + D13 48.21 57.42 59.53 + D14 58.18 49.14 51.36 + D15 70.98 73.73 33.63 + D16 34.31 35.73 28.22 + D17 54.27 47.53 29.58 + D18 41.67 50.64 32.28 + D19 36.95 37.82 48.09 + E1 4.15 4.75 2.03 + E2 4 4.98 1.37 + E3 3.3 4.49 0.86 + E4 3.11 4.3 0.86 + E5 13.11 14.9 7.06 + E6 12.26 15.23 4.18 + E7 11.53 15.57 2.27 + E8 9.69 13.74 1.51 + E9 39.15 42.08 27.33 + E10 37.43 41.51 22.23 + E11 36.99 42.5 18.85 + E12 36.4 42.58 16.27 + E13 39.97 49.81 56.15 + E14 52.08 41.07 46.36 + E15 68.71 70.76 26.45 + E16 25.7 26.97 21.28 + E17 48.53 40.6 22 + E18 31.62 40.82 23.35 + E19 31.19 31.19 43.4 + F1 1.51 1.91 1.06 + F2 1.29 2.04 0.98 + F3 1.16 2.09 0.82 + F4 1.14 2.04 0.8 + F5 6.53 8.25 5.13 + F6 5.61 8.66 4.38 + F7 4.6 8.77 3.7 + F8 3.45 7.63 2.78 + F9 37.8 41.07 30.91 + F10 35.92 40.76 29.03 + F11 35.42 41.99 29.07 + F12 34 41.8 28 + F13 32.13 42.12 51.99 + F14 45.72 33.34 40.77 + F15 66.26 67.29 19.65 + F16 17.02 18.07 14.4 + F17 41.59 32.53 15.16 + F18 26.26 35.26 18.81 + F19 24.3 23.6 37.48 + G1 2.31 3 2.27 + G2 2 3.21 2.58 + G3 1.66 3.21 2.75 + G4 1.58 3.03 2.6 + G5 8.99 11.08 8.79 + G6 7.68 11.3 9.56 + G7 6.52 11.5 10.2 + G8 5.5 10.85 10.55 + G9 38.29 41.75 33.45 + G10 35.83 41.16 34.11 + G11 34.56 41.83 35.63 + G12 33.69 42.14 36.7 + G13 25.95 35.68 48 + G14 40.6 27.62 36.14 + G15 63.72 63.63 14.35 + G16 10.85 11.82 9.58 + G17 37.23 27.64 11.62 + G18 20.28 28.97 14.15 + G19 17.7 16.74 31.7 + H1 2.56 3.04 2.92 + H2 2.34 3.2 4.12 + H3 2.12 3.28 5.43 + H4 2.06 3.18 5.29 + H5 10.07 11.6 11.24 + H6 9.01 11.68 14.81 + H7 8.22 12 19.42 + H8 7.25 11.55 21.45 + H9 39.25 42.31 36.81 + H10 37.58 41.85 40.37 + H11 37.16 43.07 45.79 + H12 36.27 43.78 49.47 + H13 21.47 30.78 44.22 + H14 36.49 23.35 32.38 + H15 61.58 60.55 10.95 + H16 8.21 8.71 6.91 + H17 33.04 23.26 8.38 + H18 16.22 24.35 10.41 + H19 12.86 11.84 26.82 + I1 4.22 4.44 5.28 + I2 4.35 4.48 8.36 + I3 4.4 4.44 11.94 + I4 4.48 4.58 12.17 + I5 15.15 15.78 15.23 + I6 14.56 15.12 19.52 + I7 14.37 14.81 24.48 + I8 14.11 14.76 30.03 + I9 41.03 42.58 36.94 + I10 40.85 42.23 40.73 + I11 40.86 42.33 45.05 + I12 41.31 42.73 47.77 + I13 17.26 25.93 40.23 + I14 32.66 19.63 28.81 + I15 59.37 57.18 7.79 + I16 4.97 5.32 4.32 + I17 28.62 18.88 5.48 + I18 11.58 18.98 7.25 + I19 9.58 8.34 22.87 + I20 0.45 0.4 0.33 + I21 2.28 1.78 0.98 + I22 2.37 1.95 0.85 + J1 2.15 1.9 2.6 + J2 2.57 2 4.72 + J3 2.93 1.95 8.1 + J4 3.15 1.92 10.76 + J5 11.73 11.6 11.81 + J6 12.98 11.93 16.19 + J7 13.91 12.07 20.95 + J8 14.01 11.59 24.35 + J9 40.75 41.22 36.34 + J10 41.26 41.07 39.74 + J11 42.63 41.68 44.51 + J12 44.02 41.78 49.25 + J13 13.82 21.69 35.98 + J14 28.87 16.33 25.08 + J15 56.04 52.29 4.97 + J16 2.46 2.63 2.29 + J17 24.04 14.75 3.15 + J18 8.12 14.49 4.55 + J19 5.98 4.79 17.76 + J20 8.26 5.37 1.04 + J21 11.52 7.81 1.62 + J22 14.67 10.72 2.6 + K1 5.63 4.7 4.86 + K2 6.74 4.58 7.23 + K3 8.04 4.48 9.73 + K4 9.39 4.76 11.79 + K5 16.66 15.39 14.44 + K6 18.72 15.18 18.23 + K7 21.56 15.5 22.97 + K8 23 15.02 25.37 + K9 42.5 42.02 36.05 + K10 44.55 41.63 39.71 + K11 47.19 41.96 44.03 + K12 49.9 43.14 47.21 + K13 10.61 17.44 31.24 + K14 24.84 13.19 21 + K15 53.12 48.05 3.19 + K16 1.05 1.14 1.13 + K17 19.93 11.34 1.67 + K18 5.3 10.47 2.73 + K19 3.95 2.76 13.94 + K20 30.61 26.43 11.04 + K21 34.91 29.6 11.78 + K22 38.95 34.57 18.4 + L1 3.88 3.12 2.32 + L2 4.93 3.2 2.69 + L3 5.75 3.14 3.02 + L4 7.31 3.79 3.4 + L5 13.29 11.54 9.39 + L6 16.22 11.73 10.32 + L7 19.95 12.08 12.06 + L8 20.79 11.31 12.01 + L9 43.22 42.09 33.78 + L10 45.52 41.88 34.65 + L11 49.04 42.87 35.98 + L12 51.03 43.83 37.78 + L13 7.45 12.77 25.59 + L14 21.26 10.76 17.73 + L15 49.45 43.12 2.14 + L16 0.47 0.49 0.5 + L17 16.04 8.49 0.78 + L18 2.91 6.5 1.39 + L19 2.5 1.45 10.28 + L20 38.7 33.98 20.86 + L21 39.36 35.23 21.23 + L22 41.36 38.77 23.51 + GS0 79.47 82.51 69.04 + GS1 72.62 74.94 59.17 + GS2 63.15 65.11 51.57 + GS3 54.72 56.51 45.03 + GS4 48.1 49.81 39.24 + GS5 42.22 43.64 34.45 + GS6 37.33 38.7 30.5 + GS7 32.38 33.61 26.11 + GS8 27.56 28.7 22.11 + GS9 22.5 23.4 17.99 + GS10 18.77 19.55 14.83 + GS11 15.48 16.08 12.04 + GS12 12.69 13.29 9.98 + GS13 10.35 10.81 7.97 + GS14 8.39 8.77 6.37 + GS15 6.45 6.79 4.97 + GS16 4.95 5.18 3.7 + GS17 3.58 3.82 2.76 + GS18 2.76 2.89 2.06 + GS19 1.97 2.08 1.45 + GS20 1.22 1.31 0.98 + GS21 1 1.05 0.74 + GS22 0.87 0.89 0.65 + GS23 0.34 0.32 0.32 + +
+ +
+
+ -- cgit v1.2.3