01-07-2014 07:36 AM
I need to output images as TIFF files. However, the files are currently too big. I need lossless compresion - LZW.
I am using LabView 2010, and to save tiff files I am using IMAQ functions "IMAQ Write to Tiff File 2.vi". Images are quite large - about 16MB (monochrome, 16 bit images). Any of default compression types, like JPEG, RLE neither ZIP, arent apropriate for me. Does anyone can help me and tell how can I save files losslessly?
01-07-2014 12:23 PM
Why are none of the existing options appropriate? Both RLE and ZIP are lossless. ZIP is very similar to LZW.
01-07-2014 12:43 PM
Try using the Imagemagick utility to re-compress/convert.
01-07-2014 12:58 PM
@nathand wrote:
Why are none of the existing options appropriate? Both RLE and ZIP are lossless. ZIP is very similar to LZW.
Excellent. I have also tried to produce image archives without information loss. I did not achieve more than 5% compression on my archives.
If regular access to the images is a demand, I use the files that "IMAQ Write File" produces. If I need a backup of lots of image files, I use a usual backup practices.