图像处理的经典彩色图像源

最经典的图像处理的图像集，包含各类经典的图像处理源

Identification of Bitmap Compression History

Sometimes image processing units inherit images in raster bitmap format only, so that processing is to be carried without knowledge of past operations that may compromise image quality (e.g., compression).

利用JPEG压缩特性的合成图像检测.pdf

提出一种利用压缩特性进行JPEG合成图像检测的方案，该文所提方案先对待检测图像进行尝试性的再压缩并考察失真程度，以估计主要内容曾经历过的压缩情况，然后根据再压缩在不同区域引起的失真程度的起伏变化识别合成图像。

Exposing digital forgeries in color filter array interpolated images

Abstract—With the advent of low-cost and high-resolution digital cameras, and sophisticated photo editing software, digital images can be easily manipulated and altered. Although good forgeries may leave no visual clues of having been tampered with, they may, nevertheless, alter the underlying statistics of an image. Most digital cameras, for example, employ a single sensor in conjunction with a color filter array (CFA), and then interpolate the missing color samples to obtain a three channel color image. This interpolation introduces specific correlations which are likely to be destroyed when tampering with an image. We quantify the specific correlations introduced by CFA interpolation, and describe how these correlations, or lack thereof, can be automatically detected in any portion of an image. We show the efficacy of this approach in revealing traces of digital tampering in lossless and lossy compressed color images interpolated with several different CFA algorithms.