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REPORT COPYRIGHT VIOLATION IN REPLY
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Message Subject
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ISON - behind the glare AWESOME!!!!
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Poster Handle
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green_girl |
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Post Content
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...
no, I dont think that is an accurate statement. The outer coma is not white, so it is easy to strip that away with a filter or two, but as it begins to get even a bit denser, it just becomes white. as we begin to get in closer to the nucleus - well, we can't get any whiter, can we? So when we try to peel away more layers, we get to a point where there is nothing left to peel back - as far as the computer is concerned, it is just a blob of white. It will treat it as a solid object, even if the nucleus is just a tiny speck in the middle.
Quoting: green_girl huh? hehe a computor can designate any colour to a coma or nucleus. it can strip an infinate amount of layers till the objects gone. neither the colour of ISON or density....is white what do you mean? this is just a jpeg. there are no layers. and yes the majority of the coma in this jpeg i question is practically white, with almost no variation. I took it into photoshop and colour sampled. I also am not going to keep arguing a point. I gave my feedback based on what i know of years working with photoshop. If you dont believe me, then try to take a pic of a very bright light bulb. then go into photoshop, make sure it is jpeg, and not raw. Now peel back "the layers" of the light until you only have left a small, glowing filament wire from inside the bulb. Odds are you cant, because photoshop can only see the halo of light that the filament created. but anyway at this point i cant explain it any clearer so no point wasting more of my time on it. If you prefer to believe the nucleus is as big as the blob in the vid, go nuts. ok so why isnt the center of ison in the image filled with white? the same effect with a lightbulb SHOLD be seen however ISON is not a source its akin to a mirror i get what your saying, but you just giveing credit to the image by saying yhe coma will appear white its clearly dark in the picture that is just more filters. edge dettecton or posterization or something similar. it picks up the very minute differences in the shades of white and gives them edges. also in a jpeg, it doesnt make a difference if you photograph the light or the light in a mirror reflecting the light, the basic premise is the same. the pixels are about as white as you can get and there is no distinction between coma and nucleus for photoshop to be able to strip one away and leave the other.
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