How to save HSV converted Image in Python?

Question

I am reading an RGB image and converting it into HSV mode using PIL. Now I am trying to save this HSV image but I am getting an error.

filename = r'\trial_images\cat.jpg'
img = Image.open(filename)
img = img.convert('HSV')
destination = r'\demo\temp.jpg'
img.save(destination)

I am getting the following error:

OSError: cannot write mode HSV as JPEG

How can I save my transformed image? Please help

Answer 1

Easy one...save as a numpy array. This works fine, but the file might be pretty big (for me it go about 7 times bigger than the jpeg image). You can numpy's savez_compressed function to cut that in half to about 3-4 times the size of the original image. Not fantastic, but when you are doing image processing you are probably fine.