Archive for January 2017

Cleaning 03 - Revolution in using of topaz clean



Normally we use topaz at small size.
With small size, you can see rectangle pattern.
Topaz clean only has effect with rectangle pattern.
There are two reason to use topaz clean
1. to have grey color.
2. to flatten pattern.

Texture bar decides the grey while strength bar and threshold bar mainly decide flatten effect.
Grey color is better to read.
Without topaz clean
Topaz clean with texture =1
Topaz clean with texture =0.6 (optional: sharpness 0.8)

Topaz clean has some weaknesses.
1.If you topaz clean with texture < 1, gradient will be worse compare to topaz clean with texture = 1.
However, if we don't topaz with texture < 1, pattern won't have grey color.
2. When we want grey color but doesn't want flatten effect. Flatten effect will cause losing gradient like highlight.
With small size, evem when let strength = 0 and lower texture, cleans still looks bad,
(the above two are the main weaknesses)
3. Only work with rectangle pattern.
4. Only work with smooth pattern (won't work for noisy pattern that was topaz denoised not enough).
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Now let say about other way to topaz clean
Topaz clean at 3000 px high instead of small size.
Let strength be 0 and sharpness = 0, texure =1 (sharpness 0.3, texture 0.6 is simillar to sharpness 0, texture 1. the difference is hard to see. there is relation between sharpness and texture).
Then resize to small size.
You will have grey color effect without flatten effect.



Sharpness or exactly blurryness will case grey effect.
-So why don't we use it in small size?
In small size the blurry can be seen so it will harm cleans more than the help.

- Why do we have to resize after using it?
Because low sharpness will make cleans blur, you can see black line was bigger and blurry so need to resize to reduce blurry.
When you resize an image bigger, it will become blur, but the reversal is not always true. Like you denoise an image at big size and resize it down to small size, it is still blur.
The final size is still small.

Topaz clean at 3000 px high then resize does have effect with other pattern other than rectangle shape.



Work well with noisy pattern

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Afterword
You still have to canvas thing before using topaz clean and level white a bit after using the filter at the very end.
After resizing to final size, you can continue to topaz clean with texture = 1 to flatten pattern.

This is not the first time this setting was used. It is just it was only used in final size/small size.
Topaz clean was supposed to with small size and texture setting is what decides grey color.
So topaz clean with sharpness < 1 at big size like 3000 px high is probably correct use.

It was found yesterday on 1/3 by Mttblue2 and me.
He used it accidently. I noticed it and brought into practice.

It still needs to test more and more to see if it is really correct because you can't realize your own errors at first. From my experiences, there is no problem with this way so I public it.
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Update
1/9
Work well with noisy pattern It still work well with noisy pattern but still need pattern is rectangle pattern so that "noise" can be already reduced beforehand.
does have effect with other pattern other than rectangle shape. This is still true but still needs rectangle pattern be the mean pattern. It means final size is small (to have rectangle pattern).

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