[jitter] arbitrary 1d matrices FAST from rotated 2d field

yes.

On Apr 3, 2008, at 10:28 AM, marius schebella wrote:
> just curious, should the line readout be interpolating?
> marius.
>
> joshua goldberg wrote:
>> hi all.
>> i've got a video mapping problem.  i have a series of 2d frames  
>> from a client, at resolution 600x600, that i need to resample in a  
>> particularly annoying way.
>> i need to pull 75 1-dim lines of 32 pixels each from the image  
>> every frame.  the lines i am sampling are almost all rotated in  
>> funny ways.- 17 degrees, 57 degrees, almost never 0 or 90.
>> is there a more efficient way than submatrix-->rota-->submatrix to  
>> get these lines out of the image?  basically i need to do arbitrary  
>> 1d scans of a 2d matrix.
>> been knocking my head at this for hours, and it's annoying.
>> ideas?
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>
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