ADOBE PHOTOSHOP FOR UNDERWATER PHOTOGRAPHERS- P6 pptx

Selectively Sharpen. If you want to selectively control the sharpening effects, you can add a mask from the Layers palette and use the black brush to remove—or reduce—sharpening in particular areas. This is often handy if the overall image needs no sharpening but an animal’s eye could use a bit. Going Back. If you sharpen the background image after you have made sev- eral adjustments to the image using Adjustment Layers, the result is virtually permanent. It can be reversed but you will find it very difficult to remove the sharpening effect and still maintain the adjustment. If you find yourself in this bind, load the original file, copy it to the clipboard, and then paste it into the layer version just above where the background was sharpened. This layer will cover up the sharpened background and still allow the effects of the Adjust- ment Layer above it. The previously mentioned method of duplicating the Background layer and then sharpening the duplicate is still the best choice. B URNING AND DODGING TECHNIQUES If you want to burn and dodge areas of an image and would like to be able to go back and edit the photo later, then you should copy the Background layer using the Ctrl/Cmd+J shortcut and use the Burn and Dodge tools on that duplicate layer. If you want to remove or reduce the effect on the layer, you can add a Layer Mask, and then use the black brush to create the desired effect. 60 ADOBE ® PHOTOSHOP ® FOR UNDERWATER PHOTOGRAPHERS The burning and dodging was done by adding a new layer and mask, and setting the blending mode to Soft Light. The black brush was then used to burn in several areas around the fish. A Levels Adjustment Layer was also added to correct the exposure of the fish, and a Clone/Healing Brush layer was added to remove some bright spots. Top Left—The tones in the background make it difficult to see the fish. Top Right—The Levels Adjustment Layer was added to tweak the color and brightness of the fish. Bottom Left—The Clone tool was then used to remove hot spots. This is the screen image when you turn off all lay- ers except the clone layer. Sometimes this is helpful to fine-tune your cloning, or find areas to remove. Bottom Right—A new layer and mask were added, and the Blending mode was set to Soft Light. A black brush was then used to burn the area around the fish. This is the screen image when you turn off all layers except the Burn & Dodge layer. [...]... image will then shift colors and Photoshop will create a new histogram that reflects this data change The same goes for a black area if you use the black eyedropper (located on the left) If there is a neutral point in the scene, such as a scuba tank, you can try the middle eyedropper on that specific area to see if it will correct the color balance 70 ADOBE PHOTOSHOP FOR UNDERWATER PHOTOGRAPHERS It should... which works best for your image, and Step Backward or use the history palette if you need to try another option BRUSH TOOL AND LAYERS MASK Another way to fine-tune Adjustment Layers is with the Brush tool Make your initial image corrections with the Levels editor, then select the mask assigned to the Levels Adjustment Layer Set your foreground color to black and the 78 ADOBE PHOTOSHOP FOR UNDERWATER PHOTOGRAPHERS... additional control over color correction and midtone contrast You may need to experiment with each of the sliders to see how they affect the different aspects of the image 76 ADOBE PHOTOSHOP FOR UNDERWATER PHOTOGRAPHERS Move the slider for the Exposure, and you will immediately see the overall effect on the image The Gamma slider is used to adjust the gamma of the image, either up or down The middle slider... straight line that plots the photo’s density versus exposure for RGB plus the individual color channels To start your editing, click on the three areas where the vertical and horizontal grid lines and the curve line intersect You can add more points later if necessary, but these three points will provide the most 72 ADOBE PHOTOSHOP FOR UNDERWATER PHOTOGRAPHERS In the Curves editor, you can add points... toward magenta To solve this problem, move the Red Source slider to the right until the shift is fixed 82 ADOBE PHOTOSHOP FOR UNDERWATER PHOTOGRAPHERS BLACK & WHITE CONVERSIONS There will be times when no amount of color correction will repair a monochrome blue or green image If you have no other uses for this image, consider converting it to black & white Grayscale The fastest method is to go to Image>Mode>Grayscale... eyedropper to select your work area and tweak your selection using the Fuzziness slider You can then use the same slider adjustment that you used with the Hue/Saturation solution mentioned above 80 ADOBE PHOTOSHOP FOR UNDERWATER PHOTOGRAPHERS The Image>Adjustments>Color Replace menu works much the same way except that the entire process can be done within one menu Select the area under the flounder’s head,... original image to provide just the exact tonal balance you desire This function is much like the Channel Splitter, except that you can mix channel colors to achieve hundreds of variations 84 ADOBE PHOTOSHOP FOR UNDERWATER PHOTOGRAPHERS Selective Color If you want to have a colored subject on a black & white background, you can open the Layers palette, add a Hue/Saturation Adjustment Layer, and reduce... camera or film scanner, but in most cases, digital editors want a greater degree of sharpness than that option allows In our second edition of Digital Imaging for the Underwater Photographer, we presented several options for sharpening your images using Photoshop s Unsharp Mask and the plug-in filter from Focus Magic (www.focus magic.com) The introduction of new tools and techniques since that time necessitates... uses the same sharpening technique as the Unsharp Mask filter Lens Blur detects the edges and detail in an image and provides finer detail sharpening and reduced halo sharpening The Motion 86 ADOBE PHOTOSHOP FOR UNDERWATER PHOTOGRAPHERS Above—This original digital camera image of a starfish was taken in the Solomon Islands Right—(Top) This enlarged section of the image shows a loss of sharpness (Bottom)... not to worry Move the Radius slider to about 10, and click OK Go back to the Layers palette and sort through the blending modes at the top of the palette until you find the Hard Light mode 88 ADOBE PHOTOSHOP FOR UNDERWATER PHOTOGRAPHERS You can then use the Opacity slider in the High Pass layer to control the amount of sharpness in the image It is easy to see the anticipated results if you use the eye . adjustments for the Tonal Width and Radius of both the shad- ows and highlights. Adjustments for Color Control and Midtone Contrast are found here as well. 76 ADOBE ® PHOTOSHOP ® FOR UNDERWATER. of the Curves editor and select the affected 74 ADOBE ® PHOTOSHOP ® FOR UNDERWATER PHOTOGRAPHERS The Threshold layer is added to serve as an informational layer where you can find your white. select a brush, set your foreground color to black, and paint away any portion of the layer that you don’t want to use in your adjustments. 64 ADOBE ® PHOTOSHOP ® FOR UNDERWATER PHOTOGRAPHERS This