PIL cannot write mode F to jpeg

Question

I am taking a jpg image and using numpy\'s fft2 to create/save a new image. However it throws this error

\"IOError: cannot write mode F as JPEG\" 
         


        

Answer 1

Try convert the image to RGB:

...
new_p = Image.fromarray(fft_p)
if new_p.mode != 'RGB':
    new_p = new_p.convert('RGB')
...