What does resolution mean?
The term resolution refers to the number of pixels per unit of physical length in an image, expressed in pixels per inch
... [Show More] (ppi). Printer resolution may be expressed in dots per inch (dpi), because device dots do not always correspond to image pixels.
What does the Crop tool do?
You can use the Crop tool to trim, scale, or straighten an image.
How can you adjust the tone and color of an image in Photoshop?
You can adjust the tone and color of an image in Photoshop using the Curves and Levels adjustment layers, such as applying the White Point tool.
What tools can you use to remove blemishes in an image?
The Healing Brush, Spot Healing Brush, Patch, and Clone Stamp tools let you replace unwanted portions of an image with other areas of the image. The Clone Stamp tool copies the source area exactly; the Healing Brush and Spot Healing Brush tools blend the area with the surrounding pixels. The Spot Healing Brush tool doesn't require a source area; it "heals" areas to match the surrounding pixels. In Content-Aware mode, the Patch tool replaces a selection with content that matches the surrounding area.
How can you remove artifacts such as colored pixels and scanned dust from an image?
The Dust & Scratch filter removes artifacts from an image.
Strategy for retouching
Retouching depends on the image you're working on and your goals for it. For most pictures you only need to change the resolution, lighten or repair a minor blemish. For other you may have to perform several tasks and used advanced tools and techniques.
Does changing resolution affect file size?
Only when pixel dimension change.
Low resolution
Blurry in appearance, relatively small file size.
When its ppi value is below 150 to 200 ppi
High resolution
Very clear in appearance and has a relatively large file size.
PPI value above 200 ppi
Straightening and cropping the image in Photoshop
Click the crop tool, press straighten
Sharpening the image
Choose filter < Sharpen < Smart Sharpen
Lens Blur, Gaussian Blur, Motion Blur
What is red eye, and how do you correct it in Photoshop?
Red eye occurs when a camera flash is reflected in the retinas of a subject's eyes. To correct red eye in Photoshop, zoom in to the subject's eye, select the Red Eye tool, and then click each eye.
How can you create a panorama from multiple images?
To blend multiple images into a panorama, choose file > automate > photomerge, select the file you want to combine, and click OK.
Describe how to fix common camera lens flaws in Photoshop. What causes these defects?
The Lens Correction filter fixes common lens flaws, such as barrel and pincushion distortion, in which straight lines bow out towards the edges of the image (barrel) or bend inward (pincushion); chromatic aberration, where a color fringe appears along the edges of image objects; and vignetting at the edges of an image, especially corners that are darker than the center. Defects can occur from incorrectly setting the lens focal length or f-stop, or by tilting the camera vertically or horizontally.
What conditions provide the best results when using the Content-Aware Move tool?
The Content-Aware Move tool works best in images that have consistent backgrounds so that Photoshop can seamlessly replicate the patterns.
The Content-Aware Fill tool
Is used to remove unwanted object and have Photoshop convincingly fill in the area instead of leaving a blank space.
Adjusting facial features with Liquify
Liquify filter is useful when you want to distort only part of an image. It includes Face-Aware Liquify options that automatically recognize faces in the image and lets you easily adjust facial features such as the eyes, nose, and mouth.
Smart object
Smart Objects preserve an image's source content with all its original characteristics, enabling you to perform nondestructive editing to the layer.
Perspective Warp Feature
Lets you adjust the way objects in your image to the scene
Clipping Mask Layers
Image must be directly above what you are clipping
What is the benefit of using a quick mask?
Quick masks are helpful for creating quick, one-time selections. In addition, using a quick mask is an easy way to edit a selection using the painting tools.
When you have a selection created by a quick mask, what happens when you deselect?
As with any other selection, a quick mask selection disappears when you deselect it
When you save a selection as an alpha channel, where is the alpha channel stored?
Alpha channels are stored in the channels panel, along with the visible color channels
How can you edit a mask in a channel once you've saved it?
You can paint in an alpha channel using black, white, and shades of gray
How do channels differ from layers?
Alpha channels are storage areas for saved selections. All layers set to be visible will be present in printed or exported output. But only the color channels are visible in printed or exported output; alpha channels are not. Layers contain information about image content, while alpha channels contain information about selections and masks.
Select and mask and select subject
Choose select > select and mask
Make sure quick selection tool is selected
Refine edge tool
Adjusting global refinements
Smooth, Feather, Contrast, Shift edge
Completing the mask
Output settings < decontaminate colors
Puppet Warp Tool
Adds natural motion to rasterized images including still images, shapes and rasterized text
Masking tools
Patch
content-aware
Spot healing
Healing
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Alt + click =target
+ 0
Clone stamp
Alt + click= target
Sample: Current & Below
Blend [Show Less]