Contents

Identify objects (as nuclei) within an image without needing the assistance of another cellular feature (as cell). 

This ImageJ plugin segments the image in classes by thresholding. It uses the same algorithm found in Otsu Thresholding, but was adapted to output more than 2 classes out of the process.

This plugin simulates color blindness. 
It is based on http://quarkphysics.ca/phys1/light/u-light.htm

Perform morphological operations (like erode and dilate or open and close) on images.

TrakEM2 is an ImageJ plugin for morphological data mining, three-dimensional modeling and image stitching, registration, editing and annotation (Fiji comes with TrakEM2). It supports arbitrary-sized datasets. 

The plugin Landmark Correspondences calculates a transformation between two corresponding landmark clouds and renders a transformed image. The landmarks are read from point selections over two images. The transformation is estimated by a least squares or Moving Least Squares fit for the available models.

Grab random images from Flickr :

• in recent uploads
• in interestingness stream
• from tags search

For post-processing analysis, use Analyze Skeleton plugin written by the same author.

Compute and display the histogram of a sequence, with a more accurate control on the histogram parameters (such as the number of bins) than the built-in Icy widget. In particular, the histogram can be computed either over a whole sequence or over a sub-region defined by a ROI.

Drag, rotate & zoom in your image using two-finger gestures (in 2D and 3D).