Re: [Imtoolkit-users] Convert loaded gif file

[Antonio S. <sc...@te...>]

  The image in the GIF file is not an RGB image. So it loaded a im.MAP
image. That's why the resize failed.

  So there are a few ways to make it work.

-- assume the image is map
r_img = im.ImageCreate(r_w, r_h, im.MAP, im.BYTE)

-- create a new image based on the old one
r_img = im.ImageCreateBased(image, r_w, r_h, nil, nil)

-- let the ResizeNew do it all
r_img = im.ProcessResizeNew(image, r_w, r_h, order)

  But it would be better to user the write interpolation order. im.MAP
images can not be linear interpolated.

order = 1
if (image:ColorSpace() == im.MAP or image:ColorSpace() == im.BINARY) then
  order = 0
end


Best,
Scuri



On Fri, Jul 18, 2014 at 2:47 PM, Milind Gupta <mil...@gm...>
wrote:

> Hi,
>         I am loading a gif file using image =
> im.FileImageLoadBitmap(fileName) then I want to resize this loaded file so
> I tried:
> r_img = im.ImageCreate(r_w, r_h, im.RGB, im.BYTE)
> im.ProcessResize(image, r_img, 1) -- do bilinear interpolation
>
> But I get this error:
> images must have the same data type and color space
> stack traceback:
>         [C]: in function 'ProcessResize'
>         bingo.lua:50: in function 'resizeImage'
>         bingo.lua:81: in function 'SavePalettes'
>         bingo.lua:103: in main chunk
>         [C]: ?
>
> How can I do the appropriate conversion so that the resize works.
>
> Thanks,
> Milind
>
>
>
>
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