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BlockHead
About
- Username
- BlockHead
- Joined
- Visits
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- Last Active
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- Member, Administrator
Comments
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Rob Pfile had an excellent idea..and I think it is the answer. Probe size.The readout preview has a probe size (number of pixels it is calculating values from). Mine is set to 1 pixel (which I think is the default). I *bet* yours is greater than one…
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Juan did respond... he doesn't know either.I think this is some kind of preview readout display issue (my guess).I am giving him your files to look like. Likely... it will not reproduce. I do think at this point, if you ever install PI on another ma…
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Wow... I can't explain this.I do see a tiny niggle that I cannot explain and I can't see how it was matter... but if you look at the name of your Master Dark- it appears you have opened it from the disk/harddrive. If you look at the title one part o…
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Screenshot? When you open them, do they say RGB images or "Gray" ... make one available?-the Blockhead
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Hmmm...I had hoped you had "rescale" checked...that would have done the trick as to why the weird results. I guess I would literally need to watch you do your thing...I can't see how you get those values. You did get equal grayscale values last time…
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Can you please open up the "Destination" part of Pixel Math and take a screen shot?-the Blockhead
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Oh... checking "create drizzle data" does not do anything if you do not utilize those special files. You only need to create them when you plan on drizzling. Drizzling data is actually a high bar of quality to reach... most people who do it don't ac…
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ooh... yes you did. So... 206265/540 = 381.97 arcsecond per millimeterBut... we want arcseconds... so we take 381.97 x .00376 = 1.43 " per pixel If you are performing PCC on an image that was drizzle upsampled by 2... then you need to make it 0.7…
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Everything works for me.I fear there is something you did along the way... as you can see from my screen shots, the converted RGB image has the same values for each channel...and only zeros are lit up in red when I apply the pixel math expression. I…
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Something is confusing me with your image. Your "RGB" image has RGB values that are unequal. When you convert a grayscale image to a color image (RGB)... the K value becomes 3 versions of K that are equal in each channel (it wouldn't be a gray image…
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Geez... I am sorry to hear this is an issue for you.You might consider getting the download feature...and play them from your machine. This will definitely solve the issue. -the Blockhead
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I wrote this several years ago when learning Python... so forgive the amateurish code (it still is that way...just more complex). #!python##Usage:# Reads the value at a particular pixel from a set of images.# Generates a list of those values.# O…
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Hi Elvie, Even if you do not have an issue, a small pedestal of 100 counts is a small part of the full dynamic range it really shouldn't cause an issue... but... As a matter of principle, your issue is an extra-ordinary one... so we need to go anoth…
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Hi Roger, I believe your information supports my assertions. If you compare the columns- the images given the highest weights in your data set are the worst images according to NSG. Furthermore, don't take NSG's word for me. Go look at your normal r…
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YEah... that would not be adaptive.
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Ah...I think there is... but for my past purposes (just to create an animation) I have not needed to worry about it. What you really need is Batch Save and Convert to take your files and save as JPEG..but apply either the current or auto-STF to the…
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From John Murphy (the developer of the script0: "NSG will calculate and apply the scale and gradient correction independently for each color channel. So the target frames should not only match the gradient and scale of the reference frame, the color…
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There are two parts of your question- one part I do not know the answer to...so I will be coming back with that. BUT, I am pretty certain you may have missed something when trying to replicate what I did. You need to assign the *same* file as a refe…
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Blink really does do this.What was the issue?-the Blockhead
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Hi Thomas, Remember, each time you log into the site, I have links to the most recent videos! Just scroll down to the bottom and click the links. You can also now find tutorials for NormalizeScaleGradient in both Fundamentals and Horizons. -the Blo…