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Like reproject_image but resamples counts instead

Makefile 49.01% C 18.85% Shell 31.17% M4 0.97%
chandra ciao image-processing pixels reproject coordinates world-coordinates resample

resample_image's Introduction

Example image

resample_image

Reprojects an image by resampling the integer pixel values onto the new output WCS.

This is a prototype CIAO tool to reproject an image from one World Coordinate System (WCS) to another. The existing reproject_image tool does this by dividing the flux in each input pixel into each output pixel. This is inappropriate when then input image has integer values (eg X-ray counts). To preserve the Poisson nature of the data we need to preserve integer counts so we need to resample the image.

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resample_image's Issues

units

Double check that units are correctly copied

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