Well, the basic way to do that would be using pixel access - https://pillow.readthedocs.io/en/3.0.x/reference/PixelAccess.html
from PIL import Image
This is just a quick RGB image that looks grayscale
im = Image.linear_gradient('L').convert('RGB')
out = Image.new('RGB', im.size)
px_in = im.load()
px_out = out.load()
for x in range(0, im.width):
for y in range(0, im.height):
r, g, b = px_in[x, y]
px_out[x, y] = (r, int(g / 2), int(b / 4))
out.save('out.png')
Otherwise, perhaps https://github.com/python-pillow/Pillow/blob/master/src/PIL/ImageFilter.py#L304
Hi. I don't quite understand your question. However, I will attempt to answer.
To read an entire file in Python -
with open('in.txt', 'r') as f:
data = f.read()
To write that data back to a file -
with open('out.txt', 'w') as f:
f.write(data)
If you are having trouble because your data is bytes, not a string -
with open('out.txt', 'wb') as f:
f.write(data)
Also, if your question relates to Pillow in some way, please explain further, because I don't see it.
When you say UV map, you’re talking about Blender, yes? Are you sure this is a Pillow question, and not a Blender question?
A bit of Googling, and https://blender.stackexchange.com/questions/7855/how-can-i-set-the-image-to-use-the-uv-map-using-the-python-api seems interesting.
.show() each frame and none of them show this blend of frames.
snaps[0].save('build/sprite.gif', transparency=0, save_all=True, append_images=snaps[1:], loop=0)
snaps = list()
for q in quadrants:
crop = image.crop(q)
alpha = crop.getchannel('A')
mask = Image.eval(alpha, lambda a: 255 if a <= 128 else 0)
crop.paste(0, mask)
crop.info['transparency'] = 255
snaps.append(crop)
snaps[0].save('build/sprite.gif', transparency=0, save_all=True, append_images=snaps[1:], loop=0)from PIL import Image
image = Image.open('walking-sprite.png')
snaps = []
for i in range(0, 8):
crop = image.crop((i * 28, 111-28, (i+1)*28, 111))
alpha = crop.getchannel('A')
mask = Image.eval(alpha, lambda a: 255 if a <= 128 else 0)
crop.paste(0, mask)
crop.info['transparency'] = 255
snaps.append(crop)
snaps[0].save('sprite.gif', transparency=0, save_all=True, append_images=snaps[1:], loop=0, disposal=2)
