convert color image into black and white image using php gd library

Question

hi

i m having a page in which users upload their images to convert into black and white image..

i tried some of the code from internet but it works only for jpeg image when i upload some gif

or png images it shows an full black image or the same image with the same color scale...

any codes appreciated..

regards vijay.

Answer 1

See similar question: http://stackoverflow.com/questions/254388/how-do-you-convert-an-image-to-black-and-white-in-php