To select complexity object, you may need to use Alpha channel. Alpha Channel is a component that determines the transparency settings for certain colors or selections. In addition to your red, green, and blue channels, you can create a separate alpha channel to control the opacity of an object, or isolate it from the rest of your image. Photoshop’s Alpha Channels allow you to split your image up into red, green, and blue colors. Each channel you view appears black and white. The darker areas have less of the color in question, and the brighter areas have more. Here is how.
Open an image wit Photoshop.
2. Click Channel. Select the most contract Channel, Blue in our case. Then create a alpha channel.
3. Make the image with the most contrast by using levels.
4. Open Levels from Images>Adjustment. Make the white is more white and black are more black.
5. Open Apply Image from Images. Make sure the Channel is Blue copy. Change the Blending to Multiply.
6. Use Dodge Tool to light the white area.
7. Use Burn Tool to dark the black area.
8. Select the brush tool with “overlay” blend mode.
9. Set foreground color white, to paint white.
10. Set foreground black white, to paint black.
11. Hold Ctrl key click on Blue Copy to select all white.
12. Go to Select>Inverse to select the tree.
13. Click Layer and then Add Vector Mask .
14. To see how good the selection, move into another image.
With Photoshop Selective Color Tool, we can correct, contract and exposure color. This is before.
This is after.
Reference color pane.
Open the image in Photoshop.
Open Selective Color from Images>Adjustments.
3. To correct sky blue color, we select Blues in Colors. Based on Referenced color, blue mixes Cyan and Magenta so that we add more Cyan and Magenta (move the slid to tight). Yellow is opposite of blue so that we reduce the yellow. To make it clear, we may move black to the right and check the Absolute.
4. Click Preview to compare.
5. To add more yellow, select Yellow from the Colors. Reduce Cyan. Add Magenta and Yellow. Move the Black slid to the right and check Absolute in necessary.
Make sure your Lightroom version is compatible with Lightroom version.
2. Nik Collection may not be installed correctly in Lightroom. This seems to occur because the “Store Presets with Catalog” option in Lightroom’s Preferences is checked. This option is in Edit > Preferences > Presets OR Lightroom > Preferences > Presets. Un-checking this box will make all of the plug-ins appear in the Photo > Edit In menu.
3. Install Nik Collection manually. Please refer to this page:
In a case you have a problem to install Nik Collection on Lightroom, you may want to install it manually. Here is how.
Close Photoshop and Lightroom.
Run Nik Collection. Note: make sure this is new installation.
Open Lightroom again and look to see if the Nik Collection product is now installed under Photo > Edit In>. If not, continue next step.
4. While Lightroom is still open, click Edit> Preferences OR Lightroom > Preferences.
5. Click on the “External Editing” tab at the top of preferences.
6. Right click on the “Choose” button and locate the Nik Collection application file for your product. Typically it can be found at either, C:\Program Files\DxO\Nik Collection\Viveza 2\Viveza 2.exe, OR Macintosh HD |Applications | Nik Collection | Viveza 2 | Viveza 2. For other products, replace Viveza 2 with the appropriate product.
7. Once located, select the program or application file as indicated above and click “Choose”.
8. Set the file format to “TIFF”, Color Space to sRGB (or the one of your choice), Bit Depth to 16-bit, Resolution to 240, and Compress to None.
9. Under Preset click, the drop-down selector and choose, “Save Current Settings as New Preset” from the list.
10. Type in the name of the plug-in such as”Viveza 2″ and click Create.