Enblend 1.3 review

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Enblend is a tool for compositing images using a Burt & Adelson multiresolution spline.

License: Freeware
OS: Mac OS X
File size: 1159K
Developer: Kekus Digital
Price: $0.00
Updated: 04 Apr 2006
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Enblend is a tool for compositing images using a Burt & Adelson multiresolution spline. This technique tries to make the seams between the input images invisible.

The basic idea is that image features should be blended across a
transition zone proportional in size to the spatial frequency of the features.
For example, objects like trees and windowpanes have rapid changes in color.

By blending these features in a narrow zone, you will not be able to see the seam because the eye already expects to see color changes at the edge of these features. Clouds and sky are the opposite.

These features have to be blended across a wide transition zone because any sudden change in color will be immediately noticeable.

Enblend expects each input TIFF to be the same size. The alpha channel should indicate the region of the file that has valid image data. Enblend compares the alpha regions in the input files to find the areas where images overlap.

Enblend does not align images for you. Use a tool like Hugin or PanoTools to do this. The multiple TIFFs produced by these programs are exactly what enblend is designed to work with.

Enblend 1.3 keywords