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This article mainly introduces how to use Python to achieve picture custom cropping gadget, has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, the following let Xiaobian take you to understand.

Environmental dependence

Ffmpy installation:

Pip install ffmpy-I https://pypi.douban.com/simple code

Put the code on.

#! / user/bin/env python# coding=utf-8 "" @ project: csdn@author: swordsman A Liang _ ALiang@file: cut_out_pic_tool.py@ide: PyCharm@time: 2022-01-20 10:38:53 "import osimport uuidfrom ffmpy import FFmpeg# Image crop 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 (ritual C:\ Users\ huyi\ Desktop\ 231.jpglegs, ritual C:\ Users\ huyi\ Desktop' (1000, 1000), (1000, 1000))

Code description

1. The parameters of cut_out_pic method are image address, output directory address, starting pixel location, width and height to be cropped.

2. Do a simple picture format check. If you need to add it, you can watch it for yourself.

3. Use uuid to avoid repetition of the final picture name.

4. The width and height of the intercepted image cannot exceed the size of the picture.

Verify it.

Prepared picture

Execution result

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', 'DVG]) PyDev console: starting.Python 3.6.13 | Anaconda, Inc. | (default, Mar 16 2021, 11:37:27) [MSC v.1916 64 bit (AMD64)] on win32runfile (' DRV Universe spyderpace csdnbank cutout outbound picturetool.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-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.jpgkeeper: Duration: 00VOGO 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.jpgbread: Metadata: encoder: Lavf58.45.100 Stream # 0:0: Video: mjpeg, yuvj444p (pc), 1000x1000, Qothers 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 fps=0.0 200000 buffer size: 0 vbv_delay: 0 vbv_delay: n vbv_delay A frame = 1 fps=0.0 qshock 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

Result picture

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