将图像左右镜像翻转,生成翻转后的图像
多图转长图
将多张图片合并成一整张长图,python YYDS!
进攻万花筒
一些潇洒实用的过人技巧😁
基于JPEG的联合图像压缩加密算法
想法?idea?
JPEG原理详解(附python实现)
JPEG(Joint Photographic Experts Group)是JPEG标准的产物,该标准由国际标准化组织(ISO)制订,是面向连续色调静止图像的一种压缩标准。 JPEG格式是最常用的图像文件格式,后缀名为.jpg或.jpeg。
Joint image compression and encryption based on order-8 alternating transforms
A Fast Computational Algorithm for the Discrete Cosine Transform
GENERAL
This category tests your skills in fundamental areas for understanding modern cryptography. These include data encoding, the XOR operator, and basic modular arithmetic. You may know this stuff already, but you can still gain points and have fun completing these challenges!
DCT离散余弦变换
Say goodbye to the depravation of yesterday.
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