Layer Scale Sizes and Image Size - Drizzle

[fulatoro]

When processing Drizzled integrated images with image sizes like 9500x5696, what is the impact on scales?  In other words, if I use a tool like MMT or Atrous, would object scales (sizes) increase with the size of the image? The default configuration would probably not allow me to isolate similar sized objects as found in smaller images?



Thank you.

[MikeOates]

I have not used drizzle much, but I am tending to increase the scale one notch or two as 9500x5696 is about 2-3 times my standard size image. So this also means adding another layer or two, so instead of having 4 layers in MMT I would use 5 or 6 and be very aggressive on the first scale and use layer two as I would have used layer 1 in an un-drizzled image.

Mike

[fulatoro]

I see. So I was correct in thinking that scale refers strictly to the pixel size of the different entities in your image with lower dimensional scales being background and noise.  I guess using the extract wavelet layers should be the starting point for determining appropriate scale sizes...

Thank you.

Moussa