[OctDev] BUG: imshow gamma problems [Was imread feature request]

[Mike P. <mik...@fs...>]

Thus spake Mike Perry (mik...@fs...):

> > It saves us work if convert is there.  Is it much slower than
> > using readjpg or readpng directly?
> 
> Using convert is hella slow.. The vast majority of time spent in
> training my face recognition program is spent reading in images..
> 
> Can't say if the other options would be any better though.

This reminds me.. when you use imshow on black and white images, the
gamma gets screwed up. Attached is a gif you can see this happen
with. Simply 'imshow(imread('subject01.gif'))' and what you get is
really washed out. I believe this is a bug in imshow not imread though,
as imwrite will not write a washed out image. 

Furthermore, calling imagemagick's 'display' directly produces a normal
image as well.

-- 
Mike Perry
Mad Computer Scientist
fscked.org evil labs