I need to convert an 8-bit IplImage to a 32-bits IplImage. Using documentation from all over the web I've tried the following things: // general code img2 = cvCreateImage(cvSize(img->width, img->height), 32, 3); int height = img->height; int width = img->width; int channels = img->nChannels; int step1 = img->widthStep; int s...
My goal is to convert a PDF into an image (specifically in TIFF). There is a PDF property called BitsPerComponent And According to description on the page, This property can take the value 1, 2, 4, 8 or 16. Other values are not supported in the PDF Specification Does that mean, 1, 2, 4, 8 or 16 translates to bits per pixel in im...
I'm trying to build an image viewer for 16-bit PNG images with WPF. My idea was to load the images with PngBitmapDecoder, then put them into an Image control, and control the brightness/contrast with a pixel shader. However, I noticed that the input to the pixel shader seems to be converted to 8 bit already. Is that a known limitation ...
I have a very simple SDL program that uses only 1MB of memory with 32 bits per pixel, 2.4MB with 24 bits per pixel, 1.9MB with 16 bits per pixel, and 1.4MB with 8 bits per pixel. what is with this strange memory usage? why does the most bits per pixel take up the least amount of memory? C++ GCC thanks ...