Post by Robin on Aug 24, 2017 18:24:26 GMT 8
In some cases, you may have need of smoothing out clumpiness and flocculence in galaxies (e.g. grand design spiral galaxies). This is only really something you would employ if doing 1D isophotal ellipse fitting on high-resolution data.
Here, sigma is the standard deviation of the blur.
and, with more smoothing:
The outputs of profoundImGrad( ) and profoundImDiff( ) are useful diagnostics for checking how much of the detail you are removing.
** This thread is in response to an earlier post by Caroline Foster (http://profit.freeforums.net/post/73/thread) **
Here, sigma is the standard deviation of the blur.
par(mfrow=c(2,2), mar=c(0.4,0.4,1,1)) # for a 2x2 grid of plots
magimage(image)
magimage(profoundImBlur(image,sigma=1))
magimage(profoundImGrad(image,sigma=1))
magimage(profoundImDiff(image,sigma=1))
and, with more smoothing:
magimage(image)
magimage(profoundImBlur(image,sigma=4))
magimage(profoundImGrad(image,sigma=4))
magimage(profoundImDiff(image,sigma=4))
The outputs of profoundImGrad( ) and profoundImDiff( ) are useful diagnostics for checking how much of the detail you are removing.
** This thread is in response to an earlier post by Caroline Foster (http://profit.freeforums.net/post/73/thread) **
