Quote:
Originally Posted by shekh
Tehnicni
It's all unclear. Do you mean
1. you have jpeg image (created in which program?)
2. vdub opens it with loss of quality?
If this is correct please share the image as is so I can examine it.
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I'm sorry, as usually the main thing I forget. Here's the original picture
https://www.dropbox.com/s/g9t47up1e5...m0630.jpg?dl=0 . Open it in VirtualDub, aplay crop (bottom 400, top 356), resize it to 1920 x 1080 with Precise Bilinear and export it as .jpg. Then import the same (downsizes) picture into VirtualDub and you will get streaks (band) around the colored cloud above slightly left on the picture.
Downsized image if you would need it:
https://www.dropbox.com/s/65ibgcuxb4...0630.jpeg?dl=0
It seems to me that the Precise bilinear resize already changes the (round) cloud, perhaps because the downsizeing removes the noise.
PS: I'm working Time Lapse through the exported images, because I process them before re inported it into VirtualDub for making video.