Free photoshelter 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.

Simple Image Browser (SIB) is a basic program for viewing folders full of images in an easy to navigate interface. Designed for browsing the image archive from Diiva Newsgroup Downloader, SIB offers full keyboard navigation for a two folder depth structure.

Frame Image is an AppleScript for PhotoFlash that will create a frame around the frontmost image. You can indicate the thickness and the script uses either black or the current background color for the frame.

Completly freeware.

Book Image Viewer 1.2 brings a utility to view two images from a slide show at the same time and side by side in a window. You load the images that you wish to view into an image list and then start the slide show to look at the images displayed like pages in a book.