Re: [flexcoders] Apply filter to image bigger then 2880 px - Picnik

[Troy Gilbert]

> Does anybody know how they have managed to achieve applying a filter
> to an image larger then 2880 px.

If they are applying it to images larger than 2880px, then they *have*
to be breaking it into tiles.

For filters that have a larger convolution filter than the pixels they
modify (like a blur filter), they likely overlap the tiles to whatever
degree is necessary, then stitch them back together.

I would imagine the bulk of the "hard work" that Picnik does is in
managing these tiles and supporting images of digicam sizes.

Troy.

[flexcoders] Apply filter to image bigger then 2880 px - Picnik

[cisnky]

Does anybody know how they have managed to achieve applying a filter 
to an image larger then 2880 px.

You can see by applying a filter say exposure then zooming in on the 
image.

Is the image broken up into smaller images? If that is the case; how 
is the filter, applied evenly across the smaller images and still keep 
perspective?