I believe that problem has been addressed in th upcoming update. The
beta version has fixed some of the problems. You could use the beta
version to temporally solve your problem.

Denis

Bertrand Laville wrote:

> Hi All,
>
> I need help concerning contrast of images.
> Some of DSS images are displayed on my screen totally blank or totally black, surely because I made a mistake at some moment.
> But I can't adjust the contrast of a given image without changing the one of nearby other images.
> Let me tell you an example.
> At level 5, that is a field of 10 degrees, I can see on the same screen images of IC 4756, blank, IC 4665, blank, and NGC 6653, with a normal contrast. If I click on a corner of each one, I can read the same data concerning contrast: "contrast 2550 to 12751"
> Then, If I click on display, and adjust the contrast / brightness of any of these images, the contrast / brightness of the three images vary accordingly. A consequence is that, if a decrease brightness up to obtain the two blank images with a normal brightness, the third one becomes totally black.
> In any way, I can only obtain a normal contrasted image and two blank ones, or, on the contrary, two normal contrasted images and a third totally black.
> Any idea on how modify contrast / brightness of an image without interfering with nearby ones ?
>
> Thanks in advance for your help.
> By the way, a friendly hello from french Alps mountains, where the weather is pretty good !
>
> Bertrand
>
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