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From: Dream Aguiar on 21 Mar 2010 12:32
Hello all,

I'm new in Matlab, so a need change the intensity of one image using a scroolbar, i need a function to do this?Someone can help me .

Thanks
From: ImageAnalyst on 21 Mar 2010 13:28
On Mar 21, 12:32 pm, "Dream Aguiar" <agui...(a)sapo.pt> wrote:
> Hello all,
>
> I'm new in Matlab, so a need change the intensity of one image using a scroolbar, i need a function to do this?Someone can help me .
>
> Thanks

You can use the scrollbar's callback method to either build up a new
colormap and apply it to change only how it looks upon display, or you
can actually change the underlying image matrix values and then
redisplay it.
From: Dream Aguiar on 21 Mar 2010 14:24
"Dream Aguiar" <aguiar4(a)sapo.pt> wrote in message <ho5hm4$5op$1(a)fred.mathworks.com>...
> Hello all,
>
> I'm new in Matlab, so a need change the intensity of one image using a scroolbar, i need a function to do this?Someone can help me .
>
> Thanks
First thnaks for your help, I will go explain better may question, i have a image and wont by means a "slidebar" increse ou decrese the intensity. How i can do this?


Thanks
From: ImageAnalyst on 21 Mar 2010 14:50
I understood perfectly. Here was the answer:

You can use the scrollbar's callback method to either build up a new
colormap and apply it to change only how it looks upon display, or you
can actually change the underlying image matrix values and then
redisplay it.
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