Java

Description

The smoothing is applied by the way of a bi-exponential filter, itself realized by a pair of one-tap recursions. It is therefore very fast; moreover, its computational cost is truly independent of the amount of smoothing. Meanwhile, the preservation of edges is obtained by a range filter akin to the range filter found in a bilateral filter. More technical details are available here.

The plugin allows one to control the amount of smoothing, the type of range filter, its broadness, and to iterate the filter several times if desired. We illustrate in Figure 2 a possible outcome of this filter. Here, we iterated the BEEPS 10 times with a Gaussian range filter, σ = 10, and the spatial decay λ = 0.1.

Description

This plugin can find the smallest bounding box of an image (or a rectangular part defined by a selection) by cropping as much background as possible. Found in Fiji, under Image> Adjust.

In the version labeled with (guess background color), the plugin tries to determine the background color by looking at the pixels on the border of the image, while Auto Crop uses the currently selected background color which can be changed by double-clicking on the pipette symbol or using the Image > Color > Color Picker....

Instead of cropping right away, you can set the selection to the rectangle that would be cropped to using Edit > Selection > Select Bounding Box.

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Description

Fast Fourier Transform (FFT) for 2D/3D images.

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