python Pillow画图总结
2022/4/13 17:12:44
本文主要是介绍python Pillow画图总结,对大家解决编程问题具有一定的参考价值,需要的程序猿们随着小编来一起学习吧!
官方介绍地址:https://pillow.readthedocs.io/en/stable/reference/index.html
# -*- coding: utf-8 -*-# # ------------------------------------------------------------------------------- # Name: Pillow测试用例 # Author: yunhgu # Date: 2022/4/13 9:02 # Description: # ------------------------------------------------------------------------------- from PIL import ImageDraw, ImageFont, Image img_file1 = "img_1.png" img_file2 = "img_2.png" # 读2取图片 img = Image.open(img_file1) img2 = Image.open(img_file2) # 旋转图片 img.rotate(45).show() # 切割图片,左上右下坐标 img.crop((10, 10, 50, 50)).show() # 缩略图 size = 120, 120 img.thumbnail(size) # 阿尔法复合,将img2复合到img img = img.convert("RGBA") img2 = img2.convert("RGBA") alpha_img = Image.alpha_composite(img, img2) alpha_img.show() # blend图 # out = image1 * (1.0 - alpha) + image2 * alpha img = img.convert("RGBA") img2 = img2.convert("RGBA") blend_img = Image.blend(img, img2, 0.3) blend_img.show() # 合成图 img = img.convert("RGBA") composite_img = Image.composite(img, img2, img) composite_img.show() # 将一组单波段图像合并为一个新的多波段图像 img = img.convert("RGBA") r, g, b, a = img.split() im1 = Image.merge('RGB', (r, g, r)) im1.show() # 创建画板 draw = ImageDraw.Draw(img) # 写文字 font = ImageFont.truetype("simkai.ttf", 15) draw.text((10, 10), "hello,世界你好", font=font, fill="blue") img.show() # 画圆形轮廓的一部分 xy = [(10, 10), (500, 500)] # 边界框 draw.arc(xy, start=0, end=360, fill="red", width=2) img.show() xy = [(10, 10), (500, 500)] # 边界框 draw.chord(xy, start=0, end=360, outline="red", width=2) img.show() # 画圆 xy = [(10, 10), (500, 500)] # 边界框 draw.ellipse(xy, outline="red", width=1) img.show() # 画线 xy = [(0, 0), (10, 10), (100, 200), (200, 300)] draw.line(xy, fill="blue", width=1) img.show() # 画点 xy = [(0, 0), (10, 10), (100, 200), (200, 300)] draw.point(xy, fill="blue") # 无法控制大小,只能是1像素 img.show() # 画点-可调大小 x, y, r = 100, 100, 5 draw.ellipse((x - r, y - r, x + r, y + r), fill='blue') img.show() # 多边形 xy = [(0, 0), (10, 10), (100, 200), (200, 300)] draw.polygon(xy, outline="blue") img.show() # 正多边形,eg:三角形,四角形,五角形 bounding_circle = (100, 100, 100) draw.regular_polygon(bounding_circle, n_sides=3, rotation=0) img.show() # 矩形 xy = [(10, 10), (100, 100)] draw.rectangle(xy, outline="blue") img.show() # 圆角矩形 xy = [(10, 10), (100, 100)] draw.rounded_rectangle(xy, radius=10, outline="blue") img.show()
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