Legacy ImageMagick Discussions Archive

Hi Snibgo!

Thanks I will try this solution!!

Really appreciate your help!

Hi Snibgo!

Thanks for the reply and info...

I extract the number of colors to know if it's a black and white image, a greyscale image or ... a color image.

The number of colors is also displayed on the web site.

Thanks for the reply!

Converting to 8 bits may speed it but it is strange that a Tiff in 32 bits takes few minutes to count the colors?

I would expect that loading the file to memory would take most of the time (which is required for any operations)...

Hi!

Thanks for the reply snibgo.

I want to get the number of colors in the image.

I found initially the problem using PerlMagick command : my ($colors) = $image->Get('colors');

The full command that I use was :
my ($width, $height, $xres, $yres, $filesize, $colors) = $image->Get('width ...

Hi!

I have the same problem with :

ImageMagick 6.8.9-10 Q16 on Linux
ImageMagick 7.0.5-10 Q16 on Windows 10

I try to get the number of colors for a TIFF image using the command :

identify -verbose -unique A28I2434.tif

If I save the file in Lightroom or Photoshop in 8 bits I don't have any ...