static void
cropOneImage(struct cmdlineInfo const cmdline,
FILE * const ifP,
FILE * const bdfP,
FILE * const ofP) {
/*----------------------------------------------------------------------------
Crop the image to which the stream *ifP is presently positioned
and write the results to *ofP. If bdfP is non-null, use the image
to which stream *bdfP is presently positioned as the borderfile
(the file that tells us where the existing borders are in the input
image). Leave *ifP and *bdfP positioned after the image.
Both files are seekable.
-----------------------------------------------------------------------------*/
xelval maxval, bmaxval;
int format, bformat;
int rows, cols, brows, bcols;
bool hasBorders;
borderSet oldBorder;
/* The sizes of the borders in the input image */
cropSet crop;
/* The crops we have to do on each side */
xel background;
pnm_readpnminit(ifP, &cols, &rows, &maxval, &format);
if (bdfP)
pnm_readpnminit(bdfP, &bcols, &brows, &bmaxval, &bformat);
if (bdfP)
analyzeImage(bdfP, bcols, brows, bmaxval, bformat, cmdline.background,
FILEPOS_END,
&background, &hasBorders, &oldBorder);
else
analyzeImage(ifP, cols, rows, maxval, format, cmdline.background,
FILEPOS_BEG,
&background, &hasBorders, &oldBorder);
if (cmdline.verbose) {
pixel const backgroundPixel = pnm_xeltopixel(background, format);
pm_message("Background color is %s",
ppm_colorname(&backgroundPixel, maxval, TRUE /*hexok*/));
}
if (!hasBorders)
pm_error("The image is entirely background; "
"there is nothing to crop.");
determineCrops(cmdline, &oldBorder, &crop);
validateComputableSize(cols, rows, crop);
if (cmdline.verbose)
reportCroppingParameters(crop);
if (PNM_FORMAT_TYPE(format) == PBM_TYPE)
writeCroppedPBM(ifP, cols, rows, format, crop, background, ofP);
else
writeCroppedNonPbm(ifP, cols, rows, maxval, format, crop,
background, ofP);
}
HistogramHorizontal::HistogramHorizontal(cv::Mat inputImage, cv::Mat mask) {
analyzeImage(inputImage, mask, false);
}
