[magick-users] MagickGetImageDepth performance issues

[Gonzalo Garramuño]

I'm using the wand interface in my software for reading images.
As my software can handle and display anything from 8-bit images to full 
HDR images, I need to obtain the (best/original) bit depth of the image 
that image magick read.

Currently, I am using:

     unsigned long depth = MagickGetImageDepth( wand );


The problem with this call is that it seems to be EXTREMELY slow 
(specially noticeable on large images like 4K images).  It seems to 
iterate through all the pixels.

I'm looking for a function call or struct member that just tells me the 
bit-depth of the (original) image as read.

That is, probably just:

	wand->image_info->depth
or
	wand->image->depth

but, incredibly, this seems to not be part of the exposed api.


-- 
Gonzalo Garramuño
ggarra at advancedsl.com.ar

AMD4400 - ASUS48N-E
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