Legacy ImageMagick Discussions Archive

This worked, thanks a lot!

Hi, Thanks! Yes, I use IM 6.7.8 Q16. Though when I run identify -verbose gray.jpg , I got the output in desired range: Channel statistics: Gray: min: 0 (0) max: 255 (1) mean: 5.43318 (0.0213066) standard deviation: 16.1351 (0.0632749) Why's the output from the two commands different? Is there a way ...

Hi, I have an image with following info: gray.jpg JPEG 12558x8776 12558x8776+0+0 8-bit PseudoClass 256c 1.937MB 0.000u 0:00.000 I am using identify to get mean gray value and standard deviation of this image: identify -format %[mean]%[standard-deviation] gray.jpg The results returned are: 65535 ...

Yes, I increased the window size to 35. Looks good. Out of curiosity: why is lat not appropriately performed when input X is omitted?

-lat 17x17+1% gives binary output. Thanks a lot! Any suggestions why the difference?
I am using IM-6.7.8 on linux.

I have a jpg image that I want to do lat on. The command I ran is following: convert img.jpg +compress -colorspace Gray -lat 17 img_lat.tif The output image is grayscale, instead of binary. Please see the images at the links. https://drive.google.com/file/d/0B1YGJ15Sy2UNMGRreGNwa1lMNTg/view?usp ...

You are right. Old image has packbits compression. Removed in new image. Thank you!

Hi, I have a 140MB old.tif image, with 24 bit color depth. I used -fill +opaque operators to change one particular color in the image to a new one, and exported the resulting image new.tif. I saw two strange things: (1) new.tif is 464MB, much bigger than old.tif. Why would this happen? (2) new.tif ...