CODEWITHSUNDEEP
pythonpython-imaging-library
sovel2
sovel2

Reputation: 415

PIL can't read edited png properly

I have a script for creating mazes and saving them as a .png files. Also I have another script for solving the created mazes. The script for solving mazes opens those .png files and converts them to array. Then it saves the solved maze as a .png file too.

maze = np.array(Image.open('maze.png'))

And it works perfectly. But when I edit the crated maze, the solving script creates a .png file that looks like diagonal lines of random colors. enter image description here

img = Image.fromarray(maze, 'RGB')
img.save('solved.png')

But when I draw my own maze in Paint, the script works fine. Why is that?

Upvotes: 0

Views: 79

Answers (1)

Mark Setchell
Mark Setchell

Reputation: 207465

Your PNG image is probably palettised as it has only two colours and that is economically saved with a palette (1 byte of index into palette per pixel instead of 3 bytes of RGB triplet per pixel).

Ensure it is RGB with:

maze = np.array(Image.open('maze.png').convert('RGB'))

Upvotes: 1

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