[Scilab-users] IPCV upscaling of image

[Claus Futtrup]

Hi Philipp

The file was saved automatically. I don't think you can set what to 
save, or even the name of the file.
I also did a xs2png, but that only saves the current figure. In my case 
a 610 x 460 pixel image (=the screen figure).

Cheers,
Claus

On 21-12-2020 11:21, P M wrote:
> Dear Claus,
>
> the example did not include saving the image as a file.
>
> Best guesses:
> - use imwrite
> - use one of the xs2...-functions (e.g.: xs2bmp)
>
> BR
> Philipp
>
>
> Am Mo., 21. Dez. 2020 um 09:20 Uhr schrieb Claus Futtrup 
> <cfuttrup at gmail.com <mailto:cfuttrup at gmail.com>>:
>
>     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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