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Jhead is a command line driven program for manipulating the non-image parts of Exif flavour JPEG files that most digital cameras produce. It has the following features: - Extracting camera settings from Exif image files - Able to set and/or adjust the Exif time field - Manipulation (extract, replace, regenerate) of Exif integral thumbnails - Transplant Exif image header from one JPEG to another - Edit JPEG comment fields - Automatically rotate images upright (using jpegtran) according to "orientation" tag. - Manage running programs on large batches of Jpegs and restoring Exif header information afterwards. - Display embedded GPS info (if present)

Patch is a spline based 3D modeling tool. It allows to create 3D models which can be rendered with POV-Ray or RenderMan compatible renderers (e.g. Aqsis).

jpeginfo is used to generate informative listings of jpeg files, and also to check jpeg files for errors. Program also supports automatic deletion of broken jpegs.

Libkface is a KDE C++ wrapper for libface which provides face recognition and detection in pictures.

jpg2pdf 是一个能把一个或多个 JPG 图像转成一个单一的 PDF 或 PostScript 文件 的程序。 和其它类似的程序相比，jpg2pdf 的主要有点在于其小巧、快速且完全由 C 语言写 成。 它可以通过使用适当的 PDF 或 PS 规则直接包装 JPG 数据，因此没有图像转换工作。

KLatexFormula is a Qt 4 program to easily get an image from a LaTeX formula. Just enter a formula, click "Evaluate", then you can drag & drop or copy the resulting image to another location (an OpenOffice document, for example) or save it as an image (many formats are available).

"jpgtn" is based on "tnpic" by Russell Marks and on "gtnpic" by Willie Daniel. "tnpic" was originally distributed as a utility with Marks' "zgv" program. "gtnpic" was an attempt to clean up and expand upon the original tnpic program and "maybe add some new features along the way." Jpgtn differs from both "tnpic" and "gtnpic" in purpose. It is *not* an indexer of image files. It simply creates thumbnails of images stored in JPEG format.

Kludge3d is a simple 3d editor, in the spirit of Worldcraft or Milkshape. It is the offspring of several other (presumably abandoned) GTK-based editors, with the best features taken from each. As the name implies, kludge3d is exactly that - a kludge.