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51 lines
918 B
Markdown
51 lines
918 B
Markdown
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# Pillow Library Cheat Sheet
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## Standard Imports
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```py
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from PIL import Image
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```
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## OPENING IMAGE FILE
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Returns `IOError` if file cannot be opened.
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```py
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image = Image.open(filepath, mode) # open image file (returns Image object)
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# FILEPATH: filename (string) or file object (musk implement seek, tell, write methods)
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image.format # image file extension
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image.size # 2-tuple (width, height) in pixels
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image.mode # defines number and name of bands in image, pixeld type and depth
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```
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## SAVING IMAGE FILE
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```py
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image.save(filepath, fmt)
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# FMT: optional format override
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```
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## IMAGE CROPPING
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```py
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box = (left, top, right, bottom) # position in pixels
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cropped = image.crop(box)
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```
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## IMAGE PASTE
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```èy
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# region dimension MUST be same as box
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image.paste(region, box)
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```
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## SPLITTING AND MERGING BANDS
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`image.mode` should be RGB
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```py
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r, g, b = image.split()
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img = image.merge(r, g, b)
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```
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