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Magnetic Lasso Tool. This is a very handy tool for selecting areas which have reasonably well-defined edges. Left-click at the starting point of your selection and simply move the mouse along the edge. "Fastening points" are automatically made at various points along the edges.

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Select the magic wand tool in the toolbox. In the options bar, select a Tolerance value (0 to 255). This determines how closely to match colors - higher tolerance means a larger selection. Check Anti-aliased to define a smooth edge to the selection.

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Polygonal Lasso Tool. Similar to the lasso tool, except that instead of holding your mouse button down to draw, left-click on various points to create a selection with a series of straight edges. You can also hold down the Alt key (Windows) or Option key (Mac OS) to draw freehand sections.

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As you drag, the selection expands outward and automatically finds and follows defined edges in the image. Select the Quick Selection tool . (If the tool isn't visible, hold down the Magic Wand tool .) In the options bar, click one of the selection options: New, Add To, or Subtract From

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The Marquee tool is the most basic of selection tools and often the one most useful. This tool is used to draw selections based on geometric shapes. Specifically, the marquee tool allows you to draw rectangular and elliptical selections. To form the selection, simply click and drag the mouse.

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CTRL+ALT+Z

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Hold ALT and move your mouse wheel.

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B

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E

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[ ] Brackets

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ALT + Click Color (Paint Brush Tool)

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CTRL+J

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CTRL+SHIFT+J

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Hold Shift

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 While Selecting To Remove From Selection

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 While Selecting To Remove From Selection

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Hold ALT

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CTRL+D

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refine Edge

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Shift+CTRL+I

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Merges a Layer To What Layer Is Below It

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Merges a Layer To What Layer Is Below It

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The spot healing brush is the default healing tool in Photoshop and can be used to clone areas from an image and blend the pixels from the sampled area seamlessly with the target area. The basic principle is that the texture from the sample area is blended with the color and luminosity surrounding wherever you paint.

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The spot healing brush is the default healing tool in Photoshop and can be used to clone areas from an image and blend the pixels from the sampled area seamlessly with the target area. The basic principle is that the texture from the sample area is blended with the color and luminosity surrounding wherever you paint.

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When the patch tool is selected, it initially operates in a lasso selection mode that can be used to define the area to patch from or patch to. For example, you can hold down the Option/Alt key to temporarily convert the patch tool to become a polygonal lasso tool with which to draw straight line selection edges.

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Content Aware feature called Content Aware Move. Content Aware Move will allow you to select pixels and move or extend them to another area of your image without the use of layers and masks

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Red eye in portraits is caused when the flash source is used too close to the lens axis and the pupils of the eye are wide open. ... Failing that, the red eye tool in Photoshop is an easy-to-use tool for removing red eye from photographs that have been taken with a direct flash source.

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The Blur Tool is used to paint a blur effect. Each stroke made using the Blur Tool will lower the contrast between affected pixels, making them appear blurred. A soft blur brush will alter pixels at varying strengths, stronger in the center turning weaker towards the edges.

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Sharpening enhances the definition of edges in an image. Whether your images come from a digital camera or a scanner, most images can benefit from sharpening. Sharpen your image multiple times in small amounts. Sharpen the first time to correct blur captured by a scanner or digital camera

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The Smudge tool simulates the effect you see when you drag a finger through wet paint. The tool picks up color where the stroke begins and pushes it in the direction you drag. Select Finger Painting in the options bar to smudge using the foreground color at the beginning of each stroke.

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In computer graphics, graphics software refers to a program or collection of programs that enable a person to manipulate images or models visually on a computer. It is simple to convert from vector graphics to raster graphics, but going the other way is harder

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Use the Paint Bucket tool. The Paint Bucket tool fills an area, that is similar in color value to the pixels you click. You can fill an area with the foreground color or a pattern. Defines how similar in color filled pixels must be

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An exposure meter that measures light reflected from only a small area of a subject or scene.

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Partial metering is one of four modes found mostly on Canon cameras to help measure a subject's brightness, enabling the photographer to take a correct exposure. Spot metering on Nikon cameras work very similar to partial metering on Canon cameras.

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a mode of automatic light metering in a camera that compensates for differences in the brightness of the central and peripheral portions of the image.

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Matrix Metering or Evaluative Metering mode is the default metering mode on most DSLRs. It works similarly to the above example by dividing the entire frame into multiple “zones”, which are then all analyzed on individual basis for light and dark tones.

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This usually referred to a work of art that was divided into sections and hinged together but has come to be something that is widely used in photography and the art world.

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A triptych , when applied to photography, is a group of three pictures. ... The image shown above is a triptych of pictures in one image. The origin of the term applied to three paintings on hinged wooden panels. They could fold into each other making a flat carrying pack.

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The move tool allows you to move a selection or entire layer by dragging it with your mouse or using your keyboard arrows keys. The move tool is located at the top right of the Photoshop Toolbox. When the move tool is selected, click and drag anywhere in the image.

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If your Zoom tool is set to Zoom In, you can zoom to a particular location in the image by dragging with the zoom tool over that location rather than simply clicking on it. If your tool is set to Zoom Out, press Alt

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The Hand tool is more of a function than an actual tool because you rarely need to click the Hand tool to use it. Simply hold down the space bar while using any other tool, and the cursor changes into the Hand icon, enabling you to move the image around in its window by dragging.

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In photography and image processing, color balances the global adjustment of the intensities of the colors

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s generally think of hue as referring simply to a specific color. Saturation defines the intensity of a hue. Vivid primary colors are highly saturated, while pastel colors are unsaturated.