<p>It can be done just using ds9 tool.</p>
<p>If I set the red color as drizzled image, and blue and green color as 'CHIP1 and CHIP2' of the image what I want to check, I can check the coverage of the image in drizzled image!</p>

CC BY-SA 4.0
2022-08-19T03:09:34.767Z
2022-08-19T03:09:34.767Z
BAO
<p>Before running astrodrizzle(a library that can align the fits file images), I runned &quot;tweakreg&quot; to update fits header.</p>
<p>I used the bullet cluster data(ACS/WFC's five filters and 42 exposures), In tweakreg, forty-two &quot;sci1&quot; extensions is matched the reference file, but five &quot;sci2&quot; extension is not matched with the reference file.</p>
<p>I know this fact from &quot;*fit.match&quot; file.
But I want to see the file that are not matched with the reference file by using checking the result of astrodrizzle.</p>
<p>But I don't know how to mark the specific exposure that I want to see.</p>
<p>i.e., How to draw this exposure only as another color?</p>

<observational-astronomy><drizzle><tweakreg>
How to show the image of the fits file what I want to see among several fits file in astrodrizzle
BAO
# How to show the image of the fits file what I want to see among several fits file in astrodrizzle

(Asked by: username_0 on 2022-08-11)

Before running astrodrizzle(a library that can align the fits file images), I runned "tweakreg" to update fits header.

I used the bullet cluster data(ACS/WFC's five filters and 42 exposures), In tweakreg, forty-two "sci1" extensions is matched the reference file, but five "sci2" extension is not matched with the reference file.

I know this fact from "\*fit.match" file.
But I want to see the file that are not matched with the reference file by using checking the result of astrodrizzle.

But I don't know how to mark the specific exposure that I want to see.

i.e., How to draw this exposure only as another color?

**Tags:** observational-astronomy, drizzle, tweakreg

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## 1 answers

### Answer by username_0 on 2022-08-19. Score: 2

It can be done just using ds9 tool.

If I set the red color as drizzled image, and blue and green color as 'CHIP1 and CHIP2' of the image what I want to check, I can check the coverage of the image in drizzled image!


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