Jpegdiff

Here is a program that obtains the pixel difference of two JPEG images and outputs it to BMP image.

We explained the extent to which generation loss occurred on the first page using the following image. This is a program to make this difference image. Please use it to see how much generation loss occurs in the JPEG recompression.

How to use

The operation is almost the same as JPEGCOLL. Specify the images as shown in the following image and press the [Execute] button. You can choose from several modes how to create a difference image.

Difference image

The differential image can be selected from the followings.

mode 0

Gray+(Dif(25%)+Offset(25%))

mode 1

Org(25%):Mod(25%)+75%

mode 2

Black:Mod(100%)

mode 3

White:Mod(100%)

mode 4

Positive:Negative

Download

Press the button to open the file of google drive. Push the download button in the upper right to download.

ZIP 197KB

Windows Application (Win32) without installer

#Google drive may display an error, but you can download it.

#Since the executable file is not digitally signed, there is a possibility that a warning may be displayed by the browser or OS during downloading and execution.