./graphics/jpegpixi, Low-loss JPEG interpolator to remove bad pixels

[ CVSweb ] [ Homepage ] [ RSS ] [ Required by ] [ Add to tracker ]

Branch: pkgsrc-2015Q1, Version: 1.1.1nb3, Package name: jpegpixi-1.1.1nb3, Maintainer: gdt

Jpegpixi is short for JPEG Pixel Interpolator. The intent of the
program is to interpolate pixels (single pixels, dots, stripes) in
JPEG images. This is useful to correct images from a digital camera
with CCD defects. For example, if one pixel is always bright green,
this pixel can be interpolated with jpegpixi.

Jpegpixi is unique in that it tries to preserve the quality of the
JPEG image as much as possible. Usual graphics programs decode JPEG
images when they are loaded, and re-encode them when they are saved,
which results in an overall loss of quality. Jpegpixi, on the other
hand, only decodes the DCT blocks (typically 8x8, 16x8, or 16x16 pixel
areas) which contain pixels to be interpolated, and when it re-encodes
them, it uses exactly the same parameters with which the image has
originally been encoded. These blocks are therefore only minimally
disturbed, and other blocks remain pixel-by-pixel identical to the
original image.

Master sites:

SHA1: 229ac209aa0722df18f11bc2d5d964101fba60b2
RMD160: 15e14360eb6fedb553188f2c2f4bad8dfcb76a7e
Filesize: 151.411 KB

Version history: (Expand)