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demo.py
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demo.py
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from PIL import Image, ImageOps, ImageFilter, ImageEnhance, ImageSequence, PSDraw
import code
import pprint
import rich
from merge import merge
from roll import roll
import readline
import rlcompleter # noqa
readfunc = readline.parse_and_bind("tab: complete")
# ===============================================================================
# Example #0 Welcome!
# ===============================================================================
rich.print("[bold magenta]Welcome![/bold magenta]")
pprint.pprint([i for i in dir(Image) if i.isupper()])
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #1 Open image and print info
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#using-the-image-class
# ===============================================================================
im = Image.open("hopper.ppm")
print(im.format, im.size, im.mode)
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #2 Rotate image 90 degrees clockwise (270 degrees counter clockwise)
# ===============================================================================
im = im.rotate(270)
im.save("rotated_hopper.jpg")
print("Saved rotated hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #3 Convert to jpeg
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#convert-files-to-jpeg
# ===============================================================================
im = Image.open("hopper.ppm")
im.save("hopper.jpg")
print("Saved jpeg hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #4 Create JPEG thumbnail
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#create-jpeg-thumbnails
# ===============================================================================
im = Image.open("hopper.ppm")
im.thumbnail([64, 64])
im.save("thumbnail_hopper.jpg")
print("Saved thumbnail hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #5 Crop image
# ===============================================================================
im = Image.open("hopper.ppm")
region = im.crop([0, 0, 64, 64])
region.save("cropped_hopper.jpg")
print("Saved cropped hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #6 Pasting image
# ===============================================================================
im = Image.open("hopper.ppm")
region = region.transpose(Image.Transpose.ROTATE_180)
im.paste(region, (0, 0, 64, 64))
im.save("pasted_hopper.jpg")
print("Saved pasted hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #7 Roll image
# ===============================================================================
im = Image.open("hopper.ppm")
im = roll(im, 64)
im.save("rolled_hopper.jpg")
print("Saved rolled hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #8 Merging images
# ===============================================================================
hopper = Image.open("hopper.ppm")
alex = Image.open("img/alex-pillow.jpg")
im = merge(hopper, alex)
im.save("merged_hopper.png")
print("Saved merged hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #8 Merging images (and resize)
# ===============================================================================
hopper = Image.open("hopper.ppm")
alex = Image.open("img/alex-pillow.jpg")
im = merge(hopper, alex)
im.save("merged_resized_hopper.png")
im = Image.open("merged_resized_hopper.png")
im = im.resize([128, 128])
im.save("merged_resized_hopper.png")
print("Saved merged and resized hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #9 Split and merge bands
# ===============================================================================
im = Image.open("hopper.ppm")
r, g, b = im.split()
im = Image.merge("RGB", (b, g, r))
im.save("rebanded_hopper.jpg")
print("Saved rebanded hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #10 Create JPEG thumbnail with resize
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#geometrical-transforms
# ===============================================================================
im = Image.open("hopper.ppm")
im = im.resize([64, 64])
im.save("resized_hopper.jpg")
print("Saved resized hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #11 Transpose image left to right
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#transposing-an-image
# ===============================================================================
im = Image.open("hopper.ppm")
im = im.transpose(Image.Transpose.FLIP_LEFT_RIGHT)
im.save("flip_left_right_hopper.jpg")
print("Saved flipped hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #12 Transpose image top to bottom
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#transposing-an-image
# ===============================================================================
im = Image.open("hopper.ppm")
im = im.transpose(Image.Transpose.FLIP_TOP_BOTTOM)
im.save("flip_top_bottom_hopper.jpg")
print("Saved flipped hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #13 Rotate image 90 degrees with transpose
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#transposing-an-image
# ===============================================================================
im = Image.open("hopper.ppm")
im = im.transpose(Image.Transpose.ROTATE_90)
im.save("rotated_hopper_90.jpg")
print("Saved rotated hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #14 Rotate image 180 degrees with transpose
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#transposing-an-image
# ===============================================================================
im = Image.open("hopper.ppm")
im = im.transpose(Image.Transpose.ROTATE_180)
im.save("rotated_hopper_180.jpg")
print("Saved rotated hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #15 Rotate image 270 degrees with transpose
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#transposing-an-image
# ===============================================================================
im = Image.open("hopper.ppm")
im = im.transpose(Image.Transpose.ROTATE_270)
im.save("rotated_hopper_270.jpg")
print("Saved rotated hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #16 Relative resize image with contain
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#relative-resizing
# ===============================================================================
im = Image.open("hopper.ppm")
ImageOps.contain(im, (100, 150)).save("contained_hopper.png")
print("Saved contained hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #17 Relative resize image with cover
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#relative-resizing
# ===============================================================================
im = Image.open("hopper.ppm")
ImageOps.cover(im, (100, 150)).save("covered_hopper.png")
print("Saved covered hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #18 Relative resize image with fit
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#relative-resizing
# ===============================================================================
im = Image.open("hopper.ppm")
ImageOps.fit(im, (100, 150)).save("fitted_hopper.png")
print("Saved fitted hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #19 Relative resize image with pad
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#relative-resizing
# ===============================================================================
im = Image.open("hopper.ppm")
ImageOps.pad(im, (100, 150), color="#f00").save("padded_hopper.png")
print("Saved padded hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #20 Convert mode
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#converting-between-modes
# ===============================================================================
im = Image.open("hopper.ppm")
im = im.convert("L")
im.save("converted_hopper.jpg")
print("Saved converted hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #21 Image enhancement
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#image-enhancement
# ===============================================================================
im = Image.open("hopper.ppm")
im = im.filter(ImageFilter.DETAIL)
im.save("enhanced_hopper.jpg")
print("Saved enhanced hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #22 Point operations
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#point-operations
# ===============================================================================
im = Image.open("hopper.ppm")
im = im.point(lambda i: i * 20)
im.save("transformed_hopper.jpg")
print("Saved transformed hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #23 Process bands
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#processing-individual-bands
# ===============================================================================
im = Image.open("hopper.ppm")
# split the image into individual bands
source = im.split()
r, g, b = 0, 1, 2
# select regions where red is less than 100
mask = source[r].point(lambda i: i < 100 and 255)
# process the green band
out = source[g].point(lambda i: i * 0.7)
# paste the processed band back, but only where red was < 100
source[g].paste(out, None, mask)
# build a new multiband image
im = Image.merge(im.mode, source)
im.save("masked_hopper.jpg")
print("Saved masked hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #24 Enhance image
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#enhancement
# ===============================================================================
im = Image.open("hopper.ppm")
im = ImageEnhance.Contrast(im)
im = im.enhance(1.3)
im.save("contrasted_hopper.jpg")
print("Saved contrasted hopper!")
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #25 Image sequences
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#image-sequences
# https://github.com/aclark4life/snorkle-gif
# ===============================================================================
im = Image.open("snorkle.gif")
i = 1
for frame in ImageSequence.Iterator(im):
frame.save(f"snorkle_{i}.png")
print(f"Saved snorkle frame {i}!")
i += 1
code.interact(local=globals(), readfunc=readfunc)
# ===============================================================================
# Example #26 Print postscript
# https://pillow.readthedocs.io/en/stable/handbook/tutorial.html#postscript-printing
# ===============================================================================
im = Image.open("hopper.ppm")
title = "hopper"
fp = open("postscript_hopper.ps", "wb")
ps = PSDraw.PSDraw(fp)
ps.begin_document(title)
ps.image((0, 0, 128, 128), im, 0)
ps.setfont("HelveticaNarrow-Bold", 36)
ps.text((0, 0), title)
ps.end_document()
print("Saved postscript hopper!")
code.interact(local=globals(), readfunc=readfunc)