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? Thanks.