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Hi all,
I want to create an artisitic effect on a portion of a picture of a house. What I want to do is to create a selection based on a brightness range e.g. 75-180 on the greyscaled version of the picture. I’m thinking that I could somehow use the resulting image as a layer "mask" to select this middle range on the real picture to then "artify" it with brush strokes or whatever.
The image/adjustment/threshold command does only half the job. So, here’s what I have tried. I know that this does not produce a real layer mask. I made 2 copies of my picture. On the upper, I used the threshold set to 75. On the second, I set the threshold to 180. Then, I set the blending mode of the upper threshold layer to subtract. This produces something in between the two threshold images. Then I merged these two layers. What I hoped for is a resulting b&w image where I could select the white (or black) to get my ultimate selection of the greys in the original. However, when I compare this blended and merged layer to the original picture, some of the whitest (snow) areas are included with some of the darkeset areas (background shaded trees).
I have tried almost all of the blending modes to come up with the perfect one but to no avail. Does anyone have a modification to my "method" that would give me what I want?
That is: Is there a way to select out the areas of then middle brightness range in a picture?
John
I want to create an artisitic effect on a portion of a picture of a house. What I want to do is to create a selection based on a brightness range e.g. 75-180 on the greyscaled version of the picture. I’m thinking that I could somehow use the resulting image as a layer "mask" to select this middle range on the real picture to then "artify" it with brush strokes or whatever.
The image/adjustment/threshold command does only half the job. So, here’s what I have tried. I know that this does not produce a real layer mask. I made 2 copies of my picture. On the upper, I used the threshold set to 75. On the second, I set the threshold to 180. Then, I set the blending mode of the upper threshold layer to subtract. This produces something in between the two threshold images. Then I merged these two layers. What I hoped for is a resulting b&w image where I could select the white (or black) to get my ultimate selection of the greys in the original. However, when I compare this blended and merged layer to the original picture, some of the whitest (snow) areas are included with some of the darkeset areas (background shaded trees).
I have tried almost all of the blending modes to come up with the perfect one but to no avail. Does anyone have a modification to my "method" that would give me what I want?
That is: Is there a way to select out the areas of then middle brightness range in a picture?
John
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