I’ve just started running ASTAP on a Windows 10 laptop. When I use the viewer to look at my original FITS files from a ZWO camera and zoom the image in and out, I get strong plaid patterns obscuring the image.
When I view the same file on the FITS viewer program AvisFV, there are no plaid patterns, only the pixel patterns on zoom in. Astro Pixel Processor and PixInsight display smooth images. My test stacked image from ASTAP was smooth in and out. It’s hard to believe that the plaid patterns I’m seeing are normal for ASTAP on a Windows laptop. I only have one Windows laptop to experiment with. Viewing the same file on my Mac desktop and laptop shows smooth zooming in and out.
I’ve attached some images zooming out from 100% showing the plaid patterns. Similar patterns when zooming in.
Can you help with or suggest a solution to this viewer problem?
I have actualy never experiance plaid patterns like this. But I do use a Mac. Are you using the native resoltion of your screen? Screen rez down sampleing is the only thing I could think of.
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Thanks for you thoughts. I'm using the recommended 1920x1080 on a 15" laptop (Acer Predator Helios 300). I tried a dozen lesser resolutions with the same variety of patterns. The proper image is in the background obscured by the patterns. There aren't very many convenient astronomical FITS viewers, so this behavior is disappointing, especially when the stacked image is perfectly rendered at any zoom and some other astro apps render the same image original file just fine. Seems like there is some discontinuity among my original images, the ASTAP imaging code and my laptop display code.
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These pattern occurs because it is displaying a raw one shot colour imaga without debayering. In the histogram you see three peaks. I'm pretty shure each represent one of the three colours red,greeen, blue. It depends on the OSC camera but what your seeing is normal.
The only thing to do it to switch on debayering. It is under tools or view. It will debayer as soon the image is loaded but it takes some more time. I assume it is on in the Mac version but not in the Windows version. Configuration of debayer can be set in the stack menu (ctrl+A) tab stack method.
note most of the time I will be offline till mid October.
Han
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I’ve just started running ASTAP on a Windows 10 laptop. When I use the viewer to look at my original FITS files from a ZWO camera and zoom the image in and out, I get strong plaid patterns obscuring the image.
When I view the same file on the FITS viewer program AvisFV, there are no plaid patterns, only the pixel patterns on zoom in. Astro Pixel Processor and PixInsight display smooth images. My test stacked image from ASTAP was smooth in and out. It’s hard to believe that the plaid patterns I’m seeing are normal for ASTAP on a Windows laptop. I only have one Windows laptop to experiment with. Viewing the same file on my Mac desktop and laptop shows smooth zooming in and out.
I’ve attached some images zooming out from 100% showing the plaid patterns. Similar patterns when zooming in.
Can you help with or suggest a solution to this viewer problem?
-Charles
I have actualy never experiance plaid patterns like this. But I do use a Mac. Are you using the native resoltion of your screen? Screen rez down sampleing is the only thing I could think of.
Thanks for you thoughts. I'm using the recommended 1920x1080 on a 15" laptop (Acer Predator Helios 300). I tried a dozen lesser resolutions with the same variety of patterns. The proper image is in the background obscured by the patterns. There aren't very many convenient astronomical FITS viewers, so this behavior is disappointing, especially when the stacked image is perfectly rendered at any zoom and some other astro apps render the same image original file just fine. Seems like there is some discontinuity among my original images, the ASTAP imaging code and my laptop display code.
Charles,
These pattern occurs because it is displaying a raw one shot colour imaga without debayering. In the histogram you see three peaks. I'm pretty shure each represent one of the three colours red,greeen, blue. It depends on the OSC camera but what your seeing is normal.
The only thing to do it to switch on debayering. It is under tools or view. It will debayer as soon the image is loaded but it takes some more time. I assume it is on in the Mac version but not in the Windows version. Configuration of debayer can be set in the stack menu (ctrl+A) tab stack method.
note most of the time I will be offline till mid October.
Han
Thank you. Switching on bebayering fixed the problem.
-Charles