Free image software for mac

NIH Image is a public domain image processing and analysis program for the Macintosh.

Image can acquire, display, edit, enhance, analyze and animate images. It reads and writes TIFF, PICT, PICS and MacPaint files, providing compatibility with many other applications, including programs for scanning, processing, editing, publishing and analyzing images. It supports many standard image processing functions, including contrast enhancement, density profiling, smoothing, sharpening, edge detection, median filtering, and spatial convolution with user defined kernels.

Image can be used to measure area, mean, centroid, perimeter, etc. of user defined regions of interest. It also performs automated particle analysis and provides tools for measuring path lengths and angles. Spatial calibration is supported to provide real world area and length measurements. Density calibration can be done against radiation or optical density standards using user specified units. Results can be printed, exported to text files, or copied to the Clipboard.

A tool palette supports editing of color and gray scale images, including the ability to draw lines, rectangles and text. It can flip, rotate, invert and scale selections. It supports multiple windows and 8 levels of magnification. All editing, filtering, and measurement functions operate at any level of magnification and are undoable.

Image directly supports Data Translation and Scion frame grabber cards for capturing images or movie sequences using a TV camera. Acquired images can be shading corrected and frame averaged. Other frame grabbers are supported via plug-in modules.

Image can be customized in three ways: via a built-in Pascal-like macro language, via externally compiled plug-in modules and on the Pascal source code level.

PerfX Image Converter is an RGB to RGB color conversion tool with ICC profiles.

Requirements: Mac OS X 10.2 or later.

Requirements: Mac OS 10.3 or later.

Image Disturb is a very interesting java graphic tool. It let you apply effects to 24-bit images. The effects are geometric, convolution, and color transformations.

Drawing functions are available, too. It lets you paint with pencil, part of image or color effect.

For those that have read my article in X-Ray Magazine about the image cataloging script, heres a version with a template.

Image Cataloger is an Applescript that will create an image catalog of images found in a indicated folder.
Run the script--youll see what I mean!

Completly freeware.