libjpeg

I finally setup mingw and msys and now I want to compile libjpeg. I downloaded the latest libjpeg sources from the projekt page (jpeg-8d) and extracted the files. Then I ran the configure command like this: ./configure --build=x86_64-w64-mingw32 --prefix=/D/Libraries/bin/jpegd-8d after that i wanted to do a build with make but I get the following error: $ make make all-am make[1]: Entering directory `/D/Libraries/sources/jpeg-8d' CC jaricom.lo CC jcapimin.lo jcapimin.c:127:1: error: conflicting types for 'jpeg_suppress_tables' jcapimin.c:128:1: note: an argument type that has a default

Possible Duplicate: pip install PIL -E TICKETS-1 - No JPEG/PNG support I'm working on a picture cropper, and I'm having trouble with my form validation. The form is validated when uploading a GIF picture, but any other format I try raises the following exception: Upload a valid image. The file you uploaded was either not an image or a corrupted image. Form <form enctype="multipart/form-data" method="post" action="/pic/">{% csrf_token %} {{ form.as_p }} <p><input type="submit" value="View uploaded image"></p> <input type="hidden" name="stage" value="crop"> </form> View if request.method ==

I followed the example code in the libjpeg example file, however I was not able to read the image data. I have the following struct, and I created an instance of this struct. struct ImageData { unsigned char *pixels; long width; long height; }; ImageData *imageData; Below is my read_JPEG_file function: int read_JPEG_file (char * filename) { struct jpeg_decompress_struct cinfo; struct my_error_mgr jerr; /* More stuff */ FILE * infile; /* source file */ JSAMPARRAY buffer; /* Output row buffer */ int row_stride; /* physical row width in output buffer */ if ((infile = fopen(filename, "rb")) ==

So I have this problem. I have an IplImage that i want to compress to JPEG and do something with it. I use libjpeg. I found a lot of answers "read through examples and docs" and such and did that. And successfully written a function for that. FILE* convert2jpeg(IplImage* frame) { FILE* outstream = NULL; outstream=malloc(frame->imageSize*frame->nChannels*sizeof(char)) unsigned char *outdata = (uchar *) frame->imageData; struct jpeg_error_mgr jerr; struct jpeg_compress_struct cinfo; int row_stride; JSAMPROW row_ptr[1]; jpeg_create_compress(&cinfo); jpeg_stdio_dest(&cinfo, outstream); cinfo.image

I have found this function which uses libjpeg to write to a file: int write_jpeg_file( char *filename ) { struct jpeg_compress_struct cinfo; struct jpeg_error_mgr jerr; /* this is a pointer to one row of image data */ JSAMPROW row_pointer[1]; FILE *outfile = fopen( filename, "wb" ); if ( !outfile ) { printf("Error opening output jpeg file %s\n!", filename ); return -1; } cinfo.err = jpeg_std_error( &jerr ); jpeg_create_compress(&cinfo); jpeg_stdio_dest(&cinfo, outfile); /* Setting the parameters of the output file here */ cinfo.image_width = width; cinfo.image_height = height; cinfo.input