Re: [Boost-users] How to convert cmyk jpg file to rgb jpg file with BOOST.GIL?

On 12 November 2013 04:21, Guangchao Wang wrote:

I used following code:

rgb8_image_t rgb8Img;

jpeg_read_and_convert_image("CMYK.jpg", rgb8Img); //CMYK.jpg is CMYK image

jpeg_write_view("RGB.jpg", const_view(rgb8Img));

to convert CMYK image to RGB image.

The saved RGB.jpg is not correct.

Could you give me some suggestion?

Try this to see if all steps separately will work: cmyk8_image_t cmyk; jpeg_read_image("CMYK.jpg", cmyk); rgb8_image_t rgb(cmyk.dimensions()); copy_pixels(color_converted_view(view(cmyk)), view(rgb)); jpeg_write_view("RGB.jpg", const_view(rgb)); Best regards, -- Mateusz Loskot, http://mateusz.loskot.net