[Scilab-users] IPCV upscaling of image

[Claus Futtrup]

Hi Philipp

I see, thank you for explaining it to me. I also see that the upscale is 
not 2x2 = 4, but it is 4x4 so the upscaled image is huge. The output 
file is saved - I believe - in wherever your Scilab file browser is 
currently active.

Best regards,
Claus

On 20-12-2020 22:55, P M wrote:
> Dear Claus,
>
> you need to feed a list into imsuperres()....not directly the image.
> Following should work.
> imgList  =  list();
> imgList(1)  =  imread('path_to_image');
> imgOut   =  imsuperres(imgList);figure(); imshow(imgList(1)); figure(); 
> imshow(imgOut); BR Philipp
>
>
> Am So., 20. Dez. 2020 um 19:42 Uhr schrieb Claus Futtrup 
> <cfuttrup at gmail.com <mailto:cfuttrup at gmail.com>>:
>
>     Hi there
>
>     I have a 4K picture, which I thought I'll try to upscale with the
>     imsuperres in the IPCV toolbox. The code simply looks like this:
>
>     imagefile = 'D:\Userdata\Claus\Pictures\Think_Global_4K.png';
>     im = imread(imagefile);
>     imout  = imsuperres(im);
>
>     The file is read and I get the following response: Unsigned Integer 8
>     bits (2160 x 3840). Then Scilab crashes. I'm running Scilab 6.1.0
>     (the
>     original release) on Windows 10 - in a MS Windows dialog box I get:
>
>      >Scilab 6.1.0 (Desktop) has stopped working
>
>      >A problem caused the program to stop working correctly. Windows
>     will
>     close the program and notify you if a solution is available.
>
>     I am not sure that I've understood how to use imsuperres correctly. I
>     see in the _params that rfactor = 4 is the default, so I was
>     expecting
>     the image to be scaled by a factor 4 (maybe that's 2 x 2 = I get
>     an 8K
>     image = 4320 x 7680 pixels). The way I understand the
>     documentation, I
>     don't need to run imsuperres_params if I'm satisified with the
>     defaults.
>
>     Kind regards,
>
>     Claus
>
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