Writes JPEG image to file. num_channels must be 1 (Y), 3 (RGB), 4 (RGBA), image pitch must be width*num_channels. note that alpha will not be stored in jpeg file.
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![bool compress_image_to_jpeg_file(const(char)[] fname, int width, int height, int num_channels, const(ubyte)[] pImage_data)](arsd.jpeg.compress_image_to_jpeg_file.1.html){kind=link}
Writes JPEG image to file. num_channels must be 1 (Y), 3 (RGB), 4 (RGBA), image pitch must be width*num_channels. note that alpha will not be stored in jpeg file.