Hey-
On the microscopy list server (Microscopy@MSA.Microscopy.Com) we are
currently having a discussion about Image's capabilities. They are as
follows.
1. NIH Image supports 4, 8 and 16 bit TIFF (as well as PICT, pics, macpaint) images in both color and grayscale and 24 bit color images. Is that right?>p> NIH Image can read 4, 8 and 16 bit grayscale TIFF files as well as 24 bit color TIFF files. It can't read compressed TIFF fles.
has any one written macros for importing 30 bit (or more) color (or Greyscale) TIFF images?
Not that I know of. Do such TIFF files exist?
I looked in the macros file on zippy, but none of them seem to do just this?
2. Image processes 8 pixel neighborhoods surrounding the central pixel.
The built-in filters process 3x3 (8 pixel) neighborhoods. The Convolve command supports user defined kernels up to 63x63 (3968 pixel neighborhoods).
3. Image uses either 8 or 16 bit integers, depending on the input image, when doing image math, yes or no?
The Image Math command uses real operations but scales the result to 8-bits. V1.59 adds the ability to process 32-bit real images.
4. UTHSCSA ImageTool for Windows sounds very much like Image, does it use NIH Image source code?
I doubt it uses any nih-image source code since it's written in C++ (nih-image is written in Pascal) and it doesn't look much like nih-image. It does, however, appear to be in the spirit of nih-image. There is a link to the Image Tool home page on the nih-image home page http://rsb.info.nih.gov/nih-image/
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Kirk Rogers
krogers@materials.ecn.purdue.edu
OR
kirk.a.rogers.1@purdue.edu