Generally, I just made selections using the lasso tool, marquee, or magic wand with adjusted tolerances. This, obviously, was not the best use of my time and found chapter 8 to be really informative on all the backdoor ways to select portions of your picture that take much less time/effort.
So here is the beginning picture that I took of some flowers that my boyfriend got for me :). I wanted to select the prominent two tulips and really punch up the color.
I switched to the channels and found the channel that had the most contrast for those flowers (the red channel) and manipulated it from there. I created an alpha channel by dragging my selection down into the create new channel icon.
I did a quick and dirty level and curve alteration to create as much contrast as would be necessary to really make the background a non issue.
I used the paintbrush with a eyedropper to match the black background and cleaned up the background noise.
This was really harsh, so I applied a Gaussian blur filter to soften the edges.
I made my selection in the alpha channel and then transitioned back to the original image to alter using hue/saturation.
I also wanted to try to grow and similar commands. So, I took the outer part of the orange petal and selected with the magic wand. Obviously, this is not enough, so I chose the grow command under the select menu to pick up the entire outside of the petal.
I got it to pretty much where I wanted it, but thought the edges could use some work. So I transitioned into quick mask mode by pressing q. Then I painted a soft edge around what I was wanting to select, inverse selected the remainder and came up with the selection.
I adjusted the hue on this petal to resemble the outer petal of the right tulip so that they would match.
I thought the portion of the right flower near the stem looked odd, so I selected it using quick mask, inverse selection and used the color selector to turn down the blue and turn up the red. I cleaned up the edges a bit by painting a soft black around the edges of the tulips and so is the resulting picture. Such is the result.
So here is the beginning picture that I took of some flowers that my boyfriend got for me :). I wanted to select the prominent two tulips and really punch up the color.
I switched to the channels and found the channel that had the most contrast for those flowers (the red channel) and manipulated it from there. I created an alpha channel by dragging my selection down into the create new channel icon.
I did a quick and dirty level and curve alteration to create as much contrast as would be necessary to really make the background a non issue.
I used the paintbrush with a eyedropper to match the black background and cleaned up the background noise.
This was really harsh, so I applied a Gaussian blur filter to soften the edges.
I made my selection in the alpha channel and then transitioned back to the original image to alter using hue/saturation.
I also wanted to try to grow and similar commands. So, I took the outer part of the orange petal and selected with the magic wand. Obviously, this is not enough, so I chose the grow command under the select menu to pick up the entire outside of the petal.
I got it to pretty much where I wanted it, but thought the edges could use some work. So I transitioned into quick mask mode by pressing q. Then I painted a soft edge around what I was wanting to select, inverse selected the remainder and came up with the selection.
I adjusted the hue on this petal to resemble the outer petal of the right tulip so that they would match.
I thought the portion of the right flower near the stem looked odd, so I selected it using quick mask, inverse selection and used the color selector to turn down the blue and turn up the red. I cleaned up the edges a bit by painting a soft black around the edges of the tulips and so is the resulting picture. Such is the result.
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Although the text doesn't link back to the picture, you can click on the pictures to enlarge them and see in much better clarity than the small pics provide.
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