如何使用Python实现图片自定义裁剪小工具

这篇文章主要介绍了如何使用Python实现图片自定义裁剪小工具，具有一定借鉴价值，感兴趣的朋友可以参考下，希望大家阅读完这篇文章之后大有收获，下面让小编带着大家一起了解一下。

环境依赖

ffmpy安装：

pip install ffmpy -i https://pypi.douban.com/simple

代码

上代码。

#!/user/bin/env python# coding=utf-8"""@project : csdn@author  : 剑客阿良_ALiang@file   : cut_out_pic_tool.py@ide    : PyCharm@time   : 2022-01-20 10:38:53"""import osimport uuidfrom ffmpy import FFmpeg# 图片裁剪def cut_out_pic(image_path: str, output_dir: str, start_pix: tuple, size: tuple):    ext = os.path.basename(image_path).strip().split('.')[-1]    if ext not in ['png', 'jpg']:        raise Exception('format error')    result = os.path.join(output_dir, '{}.{}'.format(uuid.uuid1().hex, ext))    ff = FFmpeg(inputs={image_path: None},                outputs={result: '-vf crop={}:{}:{}:{} -y'.format(size[0], size[1], start_pix[0], start_pix[1])})    print(ff.cmd)    ff.run()    return resultif __name__ == '__main__':    cut_out_pic(r'C:\Users\huyi\Desktop\231.jpg', r'C:\Users\huyi\Desktop', (1000, 1000), (1000, 1000))

代码说明

1、cut_out_pic方法参数分别为，图片地址、输出目录地址、起始像素点位置、需要裁剪的宽高。

2、做了简单的图片格式校验，如需添加，可以自己看着来。

3、最终图片名使用uuid避免重复。

4、截取的图片宽高不能超过图片大小。

验证一下

准备的图片

执行结果

C:\Users\huyi.conda\envs\python36\python.exe "C:\Program Files\JetBrains\PyCharm 2020.1.3\plugins\python\helpers\pydev\pydevconsole.py" --mode=client --port=3635import sys; print('Python %s on %s' % (sys.version, sys.platform))sys.path.extend(['D:\spyder\csdn', 'D:/spyder/csdn'])PyDev console: starting.Python 3.6.13 |Anaconda, Inc.| (default, Mar 16 2021, 11:37:27) [MSC v.1916 64 bit (AMD64)] on win32runfile('D:/spyder/csdn/cut_out_pic_tool.py', wdir='D:/spyder/csdn')ffmpeg -i C:\Users\huyi\Desktop\231.jpg -vf crop=1000:1000:1000:1000 -y C:\Users\huyi\Desktop\6e81cb7a79cb11ec96d7e454e8bf1461.jpgffmpeg version n4.3.1-20-g8a2acdc6da Copyright (c) 2000-2020 the FFmpeg developers  built with gcc 9.3-win32 (GCC) 20200320  configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug --enable-iconv --enable-zlib --enable-libxml2 --enable-libfreetype --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig --enable-libvmaf --disable-vulkan --enable-libvorbis --enable-amf --enable-libaom --enable-avisynth --enable-libdav1d --enable-ffnvcodec --enable-cuda-llvm --disable-libglslang --enable-libass --enable-libbluray --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvpx --enable-libwebp --enable-libmfx --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librav1e --enable-schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libtwolame --enable-libvidstab --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread --extra-libs=-lgomp  libavutil      56. 51.100 / 56. 51.100  libavcodec     58. 91.100 / 58. 91.100  libavformat    58. 45.100 / 58. 45.100  libavdevice    58. 10.100 / 58. 10.100  libavfilter     7. 85.100 /  7. 85.100  libswscale      5.  7.100 /  5.  7.100  libswresample   3.  7.100 /  3.  7.100  libpostproc    55.  7.100 / 55.  7.100Input #0, image2, from 'C:\Users\huyi\Desktop\231.jpg':  Duration: 00:00:00.04, start: 0.000000, bitrate: 181614 kb/s    Stream #0:0: Video: mjpeg (Progressive), yuvj444p(pc, bt470bg/unknown/unknown), 2560x1440, 25 tbr, 25 tbn, 25 tbcStream mapping:  Stream #0:0 -> #0:0 (mjpeg (native) -> mjpeg (native))Press [q] to stop, [?] for helpOutput #0, image2, to 'C:\Users\huyi\Desktop\6e81cb7a79cb11ec96d7e454e8bf1461.jpg':  Metadata:    encoder         : Lavf58.45.100    Stream #0:0: Video: mjpeg, yuvj444p(pc), 1000x1000, q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc    Metadata:      encoder         : Lavc58.91.100 mjpeg    Side data:      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/Aframe=    1 fps=0.0 q=6.7 Lsize=N/A time=00:00:00.04 bitrate=N/A speed=0.262x    video:65kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

结果图片

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