Re: [pygame] surfarray.pixels3d(). I'm stumped.

[Jack Nutting <jn_list@rebisoft.com>]

On Aug 22, 2004, at 9:18 PM, Jasper Phillips wrote:

> I get the same TypeError as with my previous code, on the last line of
> filter3x3()...
I encountered a similar problem a few months ago, and solved it with 
help from the list.  Here's my solution.  It softens the RGB and alpha 
separately, then combines the two back into a single image.

def softenImageArray(orig):
    """ shamelessly lifted from arraydemo.py"""
    soften = Numeric.array(orig)*1
    soften[1:,:]  += orig[:-1,:]*8
    soften[:-1,:] += orig[1:,:]*8
    soften[:,1:]  += orig[:,:-1]*8
    soften[:,:-1] += orig[:,1:]*8
    soften /= 33
    return soften

def superSoftenImage(img):
    """ just a wrapper for softenRgbArray.  this softens both color and
    alpha channel in the "img" surface. """
    rgbarray = pygame.surfarray.array3d(img)
    transformedArray = softenImageArray(rgbarray)
    newImg = 
pygame.surfarray.make_surface(transformedArray).convert_alpha(img)
    origAlphaArray = pygame.surfarray.array_alpha(img)
    softenedAlphaArray = softenImageArray(origAlphaArray).astype( 
origAlphaArray.typecode())
    newImgAlphaArray = pygame.surfarray.pixels_alpha(newImg)
    newImgAlphaArray[:] = softenedAlphaArray
    return newImg

//jack