LAYERSLayers allow you to work on one element of an image without disturbing the others. Think of layers as sheets of acetate stacked one on top of the other.Where there is no image on a layer, you can see through to the layers below. You can change the composition of an image by changing the order and attributes of layers. In addition, special features such as adjustment layers, fill layers, and layer styles let you create sophisticated effects.

Photoshop Layers palette A. Layers palette menu B. Layer set C. Layer D. Layer thumbnail E. Layer effect

BACKGROUND

LAYER-FIELD

LAYER-CORN

LAYER-COWS

LAYERS PALETTE

BLENDING MODEOPACITY AND TRANSPARENCY

LOCKING LAYER

LAYER EFFECT OR LAYER STYLE

LINKING LAYER

ACTIVED LAYER

VISIBLE LAYER

LOCKED LAYER

TRASHCAN-REMOVE LAYERCREATE NEW LAYER

LAYERS BLENDING MODEThe blending mode specified in the options bar controls how pixels in the image are affected by a painting or editing tool. It's helpful to think in terms of the following colors when visualizing a blending mode's effect:

Original Image Normal, 100% opacity Normal, 50% opacity Dissolve, 50% opacity Behind Clear Darken

Multiply Color Burn Linear Burn Lighten Screen Color Dodge Linear Dodge

Overlay Soft Light Hard Light Vivid Light Linear Light Pin Light Hard Mix

Difference Exclusion Hue Saturation Color Luminosity, 80% opacity

LAYERS MERGE LINKED

LAYER 1

LAYER 2 LAYER 3 LAYER 4

CLICK LINK LAYER

LINKED LAYER

LAYERS

LAYER 1

LAYER 2 LAYER EFFECT/ LAYER STYLE

IMAGE ADJUSTMENT BRIGHTNESS/CONTRAST

IMAGE ADJUSTMENT + COLOR

IMAGE ADJUSTMENT LEVELS

Levels dialog box A. Apply Auto Color Correction B. Open Auto Color Correction Options dialog box C. Shadows D. Midtones E. Highlights

Levels: Specify values for the highlights, shadows, and midtones. The Levels dialog box lets you correct the tonal range and color balance of an image by adjusting intensity levels of the image's shadows, midtones, and highlights. The Levels histogram serves as a visual guide for adjusting the image's key tones.

A

B

C

D E

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IMAGE ADJUSTMENT CURVES

Curves dialog box A. Highlights B. Midtones C. Shadows D. Adjust curve by adding points E. Draw a curve with the pencil F. Set black point G. Set gray point H. Set white point

Curves: Adjust the intensity values of pixels along a 0-255 scale while keeping up to 15 other values constant. The Curves dialog box lets you adjust the entire tonal range of an image. But instead of using only three adjustments (white point, black point, gamma), with Curves you can adjust up to 14different points throughout an image's tonal range (from shadows to highlights). You can also use Curves to make precise adjustments to individual color channels in an image.

D

F

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B

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G H

adjusted

IMAGE ADJUSTMENT BRIGHTNESS/CONTRAST

Brightness/Contrast : Specify values for Brightness and Contrast. The Brightness/Contrast command lets you make simple adjustments to the tonal range of an image. Unlike Curves and Levels, which apply proportionate adjustments to the pixels in an image (nonlinear adjustment) based on whether you're setting the black or white points or the gamma, this command makes the same adjustment to every pixel in the image (linear adjustment). The Brightness/Contrast command is not recommended for high-end output because it can result in a loss of image detail.

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IMAGE ADJUSTMENT COLOR BALANCEColor Balance: Drag a slider toward a color you want to increase in the image; drag a slider away from a color you want to decrease in the image.The Color Balance command changes the overall mixture of colors in an image for generalized color correction.

IMAGE ADJUSTMENT HUE/SATURATIONHue/Saturation: Choose which colors to edit, and specify values for Hue, Saturation, and Lightness.The Hue/Saturation command lets you adjust the hue, saturation, and brightness of a specific color component in an image or simultaneously adjust all the colors in an image. In Photoshop, this command is especially good for tweaking specific colors in a CMYK image so they are within the gamut of an output device.

Color wheel and radius of color wheel A. Saturation B. Hue

IMAGE ADJUSTMENT VARIATIONSThe Variations command lets you adjust the color balance,contrast, and saturation of an image by showing you thumbnails of alternatives.

This command is most useful for average-key images that don't require precise color adjustments. It does not work on indexed-color images or 16-bit-per-channel images (Photoshop).

FILTERUsing the Filter Gallery, you can apply filters cumulatively, and apply individual filters more than once. You can also rearrange filters and change the settings of each filter you've applied to achieve the effect you want.

Filter Gallery dialog box A. Preview B. Thumbnail of selected filter C. Show/Hide filter thumbnails D. Filters pop-up menu E. Options for selected filter

A B C D

E

The Photomerge™ command combines several photographs into one continuous image. For example, you can take five overlapping photographs of a city skyline, and then assemble them into a panorama. The Photomerge command is capable of assembling photos that are tiled horizontally as well as vertically.

PANORAMA PHOTOMERGE

Source images (top), and completed Photomerge composition (bottom)

PANORAMA PHOTOMERGE

OPEN SOURCESOPEN SOURCES

DRAG IMAGE TO WORKING AREA

MERGE IMAGES BY OVERLAPPING PART

HOW TO APPLY PDF FILE

AFTER OPENED PDF FILE TRANSPARENCY BACKGROUND

CREATE NEW LAYERAND FILL WHITE COLOR

RETOUCH APPLY IMAGES MATERIALS

PDF FILE FROM AUTO CAD WITH LINE WEIGHT

ASSIGN IMAGES MATERIAL ON DRAWING BACKGROUND