On Apr 7, 2012, at 11:30 AM, Alexander Murashko wrote:

> I want to tell you my opinion in the problem of the thumbnails in IV. If I'm 
> working on a big widescreen display I may want to see them in the simple 
> panel at the right side or in a separate resizable window. But if my monitor 
> has low resolution, I may want to turn the thumbnails off. The size of 
> thumbnails also often depends on a monitor resolution and a task I want to 
> solve. Therefore it would be the right decision to give a choice of 
> thumbnails geometry options to the user.

I could imagine that it might be helpful to have a 4-way toggle between no 
thumbnails, thumbnails on right, thumbnails on the bottom, or full-screen 
thumbnails. 

> Also in that light there is another important problem. For example I'm going 
> to find one photo with important information quickly. I copy 100 photos to my 
> computer from the camera. Each image consists of 12 megapixels. Then I'm 
> opening a folder with photos in image viewer. And I have to wait a lot of 
> time until the program parses all the images and creates thumbnails. If this 
> viewer uses some simple (bilinear) algorithm it's needed to work up 1.2 
> billion of pixels (3.6 GB of data)! I consider it's not serious. The program 
> unreasonably wastes user's time.

Threads -- there only "waiting" should be to see the thumbnails themselves.  
All other functionality on the currently-viewed image (or the ability to go 
forward or backwards) should not wait for thumbnails to be loaded.

I suspect that the time to read images from disk/network will be the 
bottleneck, not the resizing.  


--
Larry Gritz
[email protected]


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