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Post by toonbon on Oct 29, 2018 3:43:50 GMT
I have the image ![]() below where I want to replace the grey sky with a blue sky.  As you can see in the image below, I got part of the sky blue, (I used the Magic wand) but I'm having trouble with the area on the right, above the air conditioner. It's smuged with something that I can't cover up. Currently I have a Polygon Lasso around the area and I'd like to just click a nice blue spot in the sky and have everything in the polygon become that color, with all the smudging gone. Could someone tell me how I can do that?  Thanks for your help. |
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Post by BuckSkin on Oct 29, 2018 4:08:37 GMT
Could someone tell me how I can do that? Your best approach would be to replace the sky entirely with a sky from another picture; and, the picture is an easy candidate to learn on. If you are interested, I can walk you through it. If you want to fix the sky that you already have, the way I would go about it would be to use a Hue/Saturation adjustment layer, leave it on "Master" and play with the Hue slider until the sky looks to suit. This will mess around with the colors of the rest of the image; but, you will fix that by painting them out on the layer mask; paint everything except for the sky with black to hide the effect. I hope that helps. |
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Post by Sepiana on Oct 29, 2018 4:33:47 GMT
. . . I'm having trouble with the area on the right, above the air conditioner. It's smuged with something that I can't cover up. Currently I have a Polygon Lasso around the area and I'd like to just click a nice blue spot in the sky and have everything in the polygon become that color, with all the smudging gone. Could someone tell me how I can do that? toonbon, you could try this technique . . .
Use the Quick Selection tool to select the whole sky area above the air conditioner, not just that small area on the right. Create a Solid Color fill layer, blue color of your choice, blending mode = Color.
You may want to check this tutorial for more detailed steps of this technique.
Change Color Like Magic
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Post by Bailey on Oct 29, 2018 5:02:16 GMT
Hi toonbon,
The colour of a sky naturally varies slightly across the sky.
To make the "patch" look more realistic I would use a colour gradient to fill the sky. If you use a constant colour, I suspect you will easily see the polygon's border due to the variation of the constant fill colour and the actual colour of the sky as you look around the border.
As a starting point I would read the RGB values at opposite sides of the polygon and then apply a colour gradient using the 2 RGB values as start/end points of the gradient.
Then use the healing brush and/or clone tool to cleanup any residual variations in colour around the border, of which there should be very little, if any.
hth 
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Post by toonbon on Oct 30, 2018 3:32:29 GMT
Thanks to everyone for all the great ideas on how to do this. There's plenty to study and learn there. Much appreciated!
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