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Diffstat (limited to 'sanei/sanei_magic.c')
-rw-r--r--sanei/sanei_magic.c103
1 files changed, 51 insertions, 52 deletions
diff --git a/sanei/sanei_magic.c b/sanei/sanei_magic.c
index bfd56cc..3e71946 100644
--- a/sanei/sanei_magic.c
+++ b/sanei/sanei_magic.c
@@ -123,17 +123,17 @@ sanei_magic_despeck (SANE_Parameters * params, SANE_Byte * buffer,
/* convert darkest pixel into a brighter threshold */
thresh = (thresh + 255*3 + 255*3)/3;
-
+
/*loop over rows and columns around window */
for(k=-1; k<diam+1; k++){
for(l=-1; l<diam+1; l++){
int tmp[3];
-
+
/* dont count pixels in the window */
if(k != -1 && k != diam && l != -1 && l != diam)
continue;
-
+
for(n=0; n<3; n++){
tmp[n] = buffer[i + j*3 + k*bw + l*3 + n];
outer[n] += tmp[n];
@@ -182,7 +182,7 @@ sanei_magic_despeck (SANE_Parameters * params, SANE_Byte * buffer,
/* convert darkest pixel into a brighter threshold */
thresh = (thresh + 255 + 255)/3;
-
+
/*loop over rows and columns around window */
for(k=-1; k<diam+1; k++){
for(l=-1; l<diam+1; l++){
@@ -192,7 +192,7 @@ sanei_magic_despeck (SANE_Parameters * params, SANE_Byte * buffer,
/* dont count pixels in the window */
if(k != -1 && k != diam && l != -1 && l != diam)
continue;
-
+
tmp = buffer[i + j + k*bw + l];
if(tmp < thresh){
@@ -222,7 +222,7 @@ sanei_magic_despeck (SANE_Parameters * params, SANE_Byte * buffer,
else if(params->format == SANE_FRAME_GRAY && params->depth == 1){
for(i=bw; i<bt-bw-(bw*diam); i+=bw){
for(j=1; j<pw-1-diam; j++){
-
+
int curr = 0;
int hits = 0;
@@ -242,7 +242,7 @@ sanei_magic_despeck (SANE_Parameters * params, SANE_Byte * buffer,
/* dont count pixels in the window */
if(k != -1 && k != diam && l != -1 && l != diam)
continue;
-
+
hits += buffer[i + k*bw + (j+l)/8] >> (7-(j+l)%8) & 1;
if(hits)
@@ -631,7 +631,7 @@ sanei_magic_rotate (SANE_Parameters * params, SANE_Byte * buffer,
goto cleanup;
}
- if(params->format == SANE_FRAME_RGB ||
+ if(params->format == SANE_FRAME_RGB ||
(params->format == SANE_FRAME_GRAY && params->depth == 8)
){
@@ -642,19 +642,19 @@ sanei_magic_rotate (SANE_Parameters * params, SANE_Byte * buffer,
for (i=0; i<height; i++) {
int shiftY = centerY - i;
-
+
for (j=0; j<pwidth; j++) {
int shiftX = centerX - j;
int sourceX, sourceY;
-
+
sourceX = centerX - (int)(shiftX * slopeCos + shiftY * slopeSin);
if (sourceX < 0 || sourceX >= pwidth)
continue;
-
+
sourceY = centerY + (int)(-shiftY * slopeCos + shiftX * slopeSin);
if (sourceY < 0 || sourceY >= height)
continue;
-
+
for (k=0; k<depth; k++) {
outbuf[i*bwidth+j*depth+k]
= buffer[sourceY*bwidth+sourceX*depth+k];
@@ -672,15 +672,15 @@ sanei_magic_rotate (SANE_Parameters * params, SANE_Byte * buffer,
for (i=0; i<height; i++) {
int shiftY = centerY - i;
-
+
for (j=0; j<pwidth; j++) {
int shiftX = centerX - j;
int sourceX, sourceY;
-
+
sourceX = centerX - (int)(shiftX * slopeCos + shiftY * slopeSin);
if (sourceX < 0 || sourceX >= pwidth)
continue;
-
+
sourceY = centerY + (int)(-shiftY * slopeCos + shiftX * slopeSin);
if (sourceY < 0 || sourceY >= height)
continue;
@@ -689,7 +689,7 @@ sanei_magic_rotate (SANE_Parameters * params, SANE_Byte * buffer,
outbuf[i*bwidth + j/8] &= ~(1 << (7-(j%8)));
/* fill in new bit */
- outbuf[i*bwidth + j/8] |=
+ outbuf[i*bwidth + j/8] |=
((buffer[sourceY*bwidth + sourceX/8]
>> (7-(sourceX%8))) & 1) << (7-(j%8));
}
@@ -726,7 +726,7 @@ sanei_magic_isBlank (SANE_Parameters * params, SANE_Byte * buffer,
/*convert thresh from percent (0-100) to 0-1 range*/
thresh /= 100;
- if(params->format == SANE_FRAME_RGB ||
+ if(params->format == SANE_FRAME_RGB ||
(params->format == SANE_FRAME_GRAY && params->depth == 8)
){
@@ -783,7 +783,7 @@ sanei_magic_isBlank (SANE_Parameters * params, SANE_Byte * buffer,
/* Divide the image into 1/2 inch squares, skipping a 1/4 inch
* margin on all sides. If all squares are under the user's density,
- * signal our caller to skip the image entirely, by returning
+ * signal our caller to skip the image entirely, by returning
* SANE_STATUS_NO_DOCS */
SANE_Status
sanei_magic_isBlank2 (SANE_Parameters * params, SANE_Byte * buffer,
@@ -813,12 +813,12 @@ sanei_magic_isBlank2 (SANE_Parameters * params, SANE_Byte * buffer,
for(yb=0; yb<yblocks; yb++){
for(xb=0; xb<xblocks; xb++){
-
+
/*count dark pix in this block*/
double blocksum = 0;
-
+
for(y=0; y<yhalf; y++){
-
+
/* skip the top and left 1/4 inch */
int offset = (yquarter + yb*yhalf + y) * params->bytes_per_line
+ (xquarter + xb*xhalf) * Bpp;
@@ -826,7 +826,7 @@ sanei_magic_isBlank2 (SANE_Parameters * params, SANE_Byte * buffer,
/*count darkness of pix in this row*/
int rowsum = 0;
-
+
for(x=0; x<xhalf*Bpp; x++){
rowsum += 255 - ptr[x];
}
@@ -847,12 +847,12 @@ sanei_magic_isBlank2 (SANE_Parameters * params, SANE_Byte * buffer,
for(yb=0; yb<yblocks; yb++){
for(xb=0; xb<xblocks; xb++){
-
+
/*count dark pix in this block*/
double blocksum = 0;
-
+
for(y=0; y<yhalf; y++){
-
+
/* skip the top and left 1/4 inch */
int offset = (yquarter + yb*yhalf + y) * params->bytes_per_line
+ (xquarter + xb*xhalf) / 8;
@@ -860,7 +860,7 @@ sanei_magic_isBlank2 (SANE_Parameters * params, SANE_Byte * buffer,
/*count darkness of pix in this row*/
int rowsum = 0;
-
+
for(x=0; x<xhalf; x++){
rowsum += ptr[x/8] >> (7-(x%8)) & 1;
}
@@ -898,7 +898,7 @@ sanei_magic_findTurn(SANE_Parameters * params, SANE_Byte * buffer,
DBG(10,"sanei_magic_findTurn: start\n");
- if(params->format == SANE_FRAME_RGB ||
+ if(params->format == SANE_FRAME_RGB ||
(params->format == SANE_FRAME_GRAY && params->depth == 8)
){
@@ -1125,7 +1125,7 @@ sanei_magic_turn(SANE_Parameters * params, SANE_Byte * buffer,
}
/*turn color & gray image*/
- if(params->format == SANE_FRAME_RGB ||
+ if(params->format == SANE_FRAME_RGB ||
(params->format == SANE_FRAME_GRAY && params->depth == 8)
){
@@ -1282,7 +1282,7 @@ getTopEdge(int width, int height, int resolution,
double topSlope = 0;
int topOffset = 0;
int topDensity = 0;
-
+
int i,j;
int pass = 0;
@@ -1436,7 +1436,7 @@ getLine (int height, int width, int * buff,
/* find central value of this 'bucket' */
slopeCenter[j] = (
- (double)j*(maxSlope-minSlope)/slopes+minSlope
+ (double)j*(maxSlope-minSlope)/slopes+minSlope
+ (double)(j+1)*(maxSlope-minSlope)/slopes+minSlope
)/2;
@@ -1525,7 +1525,7 @@ getLine (int height, int width, int * buff,
maxDensity = lines[i][j];
}
}
-
+
DBG(15,"getLine: maxDensity %d\n",maxDensity);
*finSlope = 0;
@@ -1544,20 +1544,20 @@ getLine (int height, int width, int * buff,
}
}
}
-
+
if(0){
fprintf(stderr,"offsetCenter: ");
for(j=0;j<offsets;j++){
fprintf(stderr," %+04.0f",offsetCenter[j]);
}
fprintf(stderr,"\n");
-
+
fprintf(stderr,"offsetScale: ");
for(j=0;j<offsets;j++){
fprintf(stderr," %04d",offsetScale[j]);
}
fprintf(stderr,"\n");
-
+
for(i=0;i<slopes;i++){
fprintf(stderr,"slope: %02d %+02.2f %03d:",i,slopeCenter[i],slopeScale[i]);
for(j=0;j<offsets;j++){
@@ -1589,12 +1589,12 @@ getLine (int height, int width, int * buff,
return ret;
}
-/* find the left side of paper by moving a line
+/* find the left side of paper by moving a line
* perpendicular to top slope across the image
* the 'left-most' point on the paper is the
* one with the smallest X intercept
* return x and y intercepts */
-static SANE_Status
+static SANE_Status
getLeftEdge (int width, int height, int * top, int * bot,
double slope, int * finXInter, int * finYInter)
{
@@ -1611,7 +1611,7 @@ getLeftEdge (int width, int height, int * top, int * bot,
leftCount = 0;
for(i=0;i<width;i++){
-
+
if(top[i] < height){
int tyi = top[i] - (slope * i);
int txi = tyi/-slope;
@@ -1638,7 +1638,7 @@ getLeftEdge (int width, int height, int * top, int * bot,
leftCount = 0;
for(i=0;i<width;i++){
-
+
if(bot[i] > -1){
int byi = bot[i] - (slope * i);
@@ -1677,7 +1677,7 @@ getLeftEdge (int width, int height, int * top, int * bot,
/* Loop thru the image and look for first color change in each column.
* Return a malloc'd array. Caller is responsible for freeing. */
-int *
+int *
sanei_magic_getTransY (
SANE_Parameters * params, int dpi, SANE_Byte * buffer, int top)
{
@@ -1715,7 +1715,7 @@ sanei_magic_getTransY (
/* load the buff array with y value for first color change from edge
* gray/color uses a different algo from binary/halftone */
- if(params->format == SANE_FRAME_RGB ||
+ if(params->format == SANE_FRAME_RGB ||
(params->format == SANE_FRAME_GRAY && params->depth == 8)
){
@@ -1734,10 +1734,10 @@ sanei_magic_getTransY (
}
near *= winLen;
far = near;
-
+
/* move windows, check delta */
for(j=firstLine+direction; j!=lastLine; j+=direction){
-
+
int farLine = j-winLen*2*direction;
int nearLine = j-winLen*direction;
@@ -1770,10 +1770,10 @@ sanei_magic_getTransY (
int near = 0;
for(i=0; i<width; i++){
-
+
/* load the near window with first pixel */
near = buffer[(firstLine*width+i)/8] >> (7-(i%8)) & 1;
-
+
/* move */
for(j=firstLine+direction; j!=lastLine; j+=direction){
if((buffer[(j*width+i)/8] >> (7-(i%8)) & 1) != near){
@@ -1809,7 +1809,7 @@ sanei_magic_getTransY (
/* Loop thru the image height and look for first color change in each row.
* Return a malloc'd array. Caller is responsible for freeing. */
-int *
+int *
sanei_magic_getTransX (
SANE_Parameters * params, int dpi, SANE_Byte * buffer, int left)
{
@@ -1848,7 +1848,7 @@ sanei_magic_getTransX (
/* load the buff array with x value for first color change from edge
* gray/color uses a different algo from binary/halftone */
- if(params->format == SANE_FRAME_RGB ||
+ if(params->format == SANE_FRAME_RGB ||
(params->format == SANE_FRAME_GRAY && params->depth == 8)
){
@@ -1867,10 +1867,10 @@ sanei_magic_getTransX (
}
near *= winLen;
far = near;
-
+
/* move windows, check delta */
for(j=firstCol+direction; j!=lastCol; j+=direction){
-
+
int farCol = j-winLen*2*direction;
int nearCol = j-winLen*direction;
@@ -1888,7 +1888,7 @@ sanei_magic_getTransX (
near -= buffer[i*bwidth + nearCol*depth + k];
near += buffer[i*bwidth + j*depth + k];
}
-
+
if(abs(near - far) > 50*winLen*depth - near*40/255){
buff[i] = j;
break;
@@ -1902,10 +1902,10 @@ sanei_magic_getTransX (
int near = 0;
for(i=0; i<height; i++){
-
+
/* load the near window with first pixel */
near = buffer[i*bwidth + firstCol/8] >> (7-(firstCol%8)) & 1;
-
+
/* move */
for(j=firstCol+direction; j!=lastCol; j+=direction){
if((buffer[i*bwidth + j/8] >> (7-(j%8)) & 1) != near){
@@ -1938,4 +1938,3 @@ sanei_magic_getTransX (
return buff;
}
-
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 22:23:01 +0000