Remove hot spots from JPEG images with minimal quality loss
Jpegpixi is short for "JPEG pixel interpolator". It is a command-line
utility which interpolates pixels in JFIF images (commonly referred to
as "JPEG images"). This is useful to correct images from a digital
camera with CCD defects.
Jpegpixi tries to preserve the quality of the JFIF image as much as
possible. Most graphics programs decode JFIF 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, does not decode
and re-encode the image, but manipulates the encoded image data. In
doing so, it also preserves EXIF metadata.
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