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<p>This is really informative and makes perfect sense..... makes my
life a lot harder, but perfect sense</p>
<p>If I Could i ask a follow on question to this,<br>
</p>
<p> What is the recommended processing paradigm for slightly
off-nadir imagery where their is a need for a full [3x3] matrix
mapping to take it to a consistent projection? ie the images have
at a minimum perspective effects.<br>
</p>
<p> the reason i ask, is i have a significant image pile that
needs this re-projection to remove camera lens + perspective
effects , to map it to a consistent conformal projection? Can i do
this with gdal_warp? or do i need to code this up, and then go
from their once their is just a rotation / scale left.<br>
</p>
<p>Many thanks<br>
</p>
<p>Joe<br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 2023-11-29 09:37, Greg Troxel via
gdal-dev wrote:<br>
</div>
<blockquote type="cite" cite="mid:rmimsuwbmfs.fsf@s1.lexort.com">
<pre>
The basic point is that this process is starting from a belief that the
imagery is consistent and needs only translation, scaling, and rotation.
That's not quite true, as a general matrix multiply is looser than a
rotation and scale, having 4 variables vs 2.
</pre>
</blockquote>
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