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#1
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Image stacker programs
Hi all - I have just written an image stacker (image averaging) noise
reducer. It works very well but I was wondering what performance you guys get to average, say, 8 images at 640 480? Like x seconds on a 1Ghz machine? |
#2
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Image stacker programs
"John Chewter" wrote in message ... Hi all - I have just written an image stacker (image averaging) noise reducer. It works very well but I was wondering what performance you guys get to average, say, 8 images at 640 480? Like x seconds on a 1Ghz machine? Hi John, If you are just talking about stacking (ie not aligning) then something like k3ccdtools will do this in under a second Robin |
#3
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Image stacker programs
"Robin Leadbeater" wrote in message ... If you are just talking about stacking (ie not aligning) then something like k3ccdtools will do this in under a second I probably should qualify that by saying that these are 24bit colour images. It stacks these at 10frames/sec on my 350MHz Pentium II Robin |
#4
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Image stacker programs
that would be a good 1 for it how about give us a download link so we
can try it. |
#5
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Image stacker programs
I had no idea what speeds others had acheived.
I made it for low noise Xray & microscopy. Well on my 2GHz XP it reads 9 files (640x480 grasyscale) from disk, combines the 9 images and displays the result in 0.76 sec (8 bit grayscale only at this time) It doesn't allign - it just combines. that would be a good 1 for it how about give us a download link so we can try it. Sure - give me a day or two to clean it up. John |
#6
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Image stacker programs
"John Chewter" wrote in message ... Can someone point me to stack of images? - in series of nine or better? Thanks You can see a recent processed image of Jupiter on my website here http://mysite.freeserve.com/astro2/astro2_image_66.htm An example of a raw frame and the aligned stack of 480 frames that were used to produce it are here http://mysite.freeserve.com/astro2/astro2_image_66a.htm I used Registax2 Robin |
#7
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Image stacker programs
John Chewter wrote:
Hi all - I have just written an image stacker (image averaging) noise reducer. It works very well but I was wondering what performance you guys get to average, say, 8 images at 640 480? Like x seconds on a 1Ghz machine? I was doing 25Hz with no problems doing a running average, with only the crudest C code, on a PPro 240Mhz. Basically, it stacked byte-wide images into 2 byte words, and applied a crude function to rescale the top 10% of the word, until a specified number of pixels got near overflow, then outputted the image. |
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