[PD] read a pixel value
matju at artengine.ca
Tue Jun 24 19:13:12 CEST 2008
On Tue, 24 Jun 2008, Claude Heiland-Allen wrote:
>> I've been looking for an object that can do that, but I haven't found it
>> yet, do you know
>> a way to do that?, maybe with gem?
and generally speaking, [#store] is the equivalent of [pix_data].
You send to it the coords of the pixel you want, as a pair of numbers, or
of the pixel component you want, using a triplet of numbers, or of the
image row you want, as a list of a single number.
Or you can do any of these repeatedly with different position, by
packaging several coordinates in a bigger message, as a package deal for
getting several pixels at once. You can even make [#store] build a new
picture for you by picking pixels like that... [#remap_image] is some kind
of meta-abstraction based on that idea and on [#store].
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| Mathieu Bouchard - tél:+1.514.383.3801, Montréal, Québec
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