[ImageJ-devel] Operations which produce pixels outside of image range

[Senseney, Justin (NIH/CIT) [E]]

In Beta1 of IJ2, if you open an image like Samples->Boats.gif and multiply by 5, or -5, you'll see that the resulting intensities are wrapping around the maximum/minimum supported pixels.  Another example, create a new 8-bit image of pixel intensity 255 and call Process->Math->Multiply: 1.1, the resulting value is 25.  Auto-promotion of images would be useful, but for reference IJ1 just leaves at minimum/maximum intensity value supported in image as appropriate.

Justin Senseney
BIRSS/ISL/DCB/CIT/NIH
301-594-5887
301-480-0028 (fax)
Building 12A/2015

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