python 对图片进行简单的处理

pip install Pillow

from PIL import Image, ImageDraw
im = Image.open("blur.jpg")
draw = ImageDraw.Draw(im)
draw.line((0, 0) + im.size, fill=128)
draw.line((0, im.size[1], im.size[0], 0), fill=128)
del draw
# write to stdout
im.save("blur.jpg", "PNG")

from PIL import ImageFont, ImageDraw,Image, ImageDraw
image = Image.open("image.png").convert('RGBA')
txt=Image.new('RGBA', image.size, (0,0,0,0))
font=ImageFont.truetype("c:/Windows/fonts/Tahoma.ttf", 20)
draw=ImageDraw.Draw(txt)
draw.text((txt.size[0]-100, txt.size[1]-30), "linshiyingdi", font=font)
out=Image.alpha_composite(image, txt)
out.save("imageWithText.png", "png")
out.show()

from PIL import ImageFont, ImageDraw, Image, ImageDraw

image = Image.open("image.png")
logo = Image.open("logo.png")
layer = Image.new('RGBA', image.size, (0, 0, 0, 0))
layer.paste(logo, (50, 60))
out = Image.composite(layer, image, layer)
out.save("imageWithLogo.png", "png")
out.show()

from PIL import ImageFont, ImageDraw, Image, ImageDraw

image = Image.open("image.png")
logo = Image.open("logo.png")
logo.thumbnail((200, 100))
layer = Image.new('RGBA', image.size, (0, 0, 0, 0))
layer.paste(logo, (50, 60))
out = Image.composite(layer, image, layer)
out.save("imageWithLogo.png", "png")
out.show()

from PIL import Image, ImageFilter
# 打开一个jpg图像文件，直接放到当前路径下方便点:
im = Image.open('2822.jpg')
# 应用模糊滤镜:
im2 = im.filter(ImageFilter.BLUR)
im2.save('blur.jpg', 'jpeg')

from PIL import Image
img = Image.open("image.png")
print(img.size)
cropped = img.crop((0, 0, 1303, 734))  # (left, upper, right, lower)
cropped.save("imageCropped.png")

from PIL import Image

img = Image.open("image.png")
print(img.size)
right = 1303
lower = 734
if img.size[0] < 1303:
    right = img.size[0]
if img.size[1] < 734:
    lower = img.size[1]
cropped = img.crop((0, 0, right, lower))  # (left, upper, right, lower)
cropped.save("imageCropped.png")