Wand python get pixel color with GIF

Question

I want get rgb color some pixel in gif

from wand.image import Image
with Image(blob=img, format='JPG') as picture:
    print picture[1][1].string 
    # return srgb(0,0,0) is good

Problem:

from wand.image import Image
with Image(blob=img, format='GIF') as picture:
    print picture[1][1].string 
    # return srgb(93%,93%,93%) why?

score 1 · Answer 1 · answered Apr 04 '19 at 19:44

1

This is how color compliance works. Not all parts of the pixel in question can be represented as a 8-bit unsigned integer, so it's represented as a normalized percent -- between 0% and 100%.

Try the following...

from wand.image import Image
with Image(blob=img, format='GIF') as picture:
    picture.depth = 8
    print picture[1, 1].string
    #=> srgb(274,274,274)

answered Apr 04 '19 at 19:44

emcconville

23,800
4
50
66

still return srgb(26%,27%,26%) – Jarek Wichrowski Apr 05 '19 at 08:00
If that's the case, then you'll need to do `(pixel.red_int8, pixel.green_int8, pixel.blue_int8)`, but you can't stop '%' from showing up. Compliance will never show `srgb(66.3, 68.85000000000001, 66.3)` – emcconville Apr 05 '19 at 13:54

score 1 · Answer 2 · answered Jul 10 '20 at 19:13

1

This is my code for png (python3)

from wand.image import Image

with Image(filename='white_background_320x200_edited_alphaoff.png') as img:
    print(img[1][1])

answered Jul 10 '20 at 19:13

quine9997

685
7
13

Wand python get pixel color with GIF

2 Answers2