Lecture Notes

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• Raster graphics v Vector graphcis
• Analysis by overlay
• Guidelines
• Bitmapped v Grayscale v RGB v CMYK color

• Histogram

• Some basic skills associated with Photoshop
• To create guidelines (which will not print) place the cursor on the ruler, left click, and drag the mouse off the ruler and place the guideline where desired.
• While creating text, it is possible to edit all of its characteristics including font, point, size, color, style, ect. It is possible to edit text later (as long as the layer containing the text has not been flattened) by simply selecting the layer that the text is on, and left clicking on the text.
• When shapes are created (in Photoshop 6.0 only), such as lines, rectangles, polygons, custom shapes, ect. The outline of the shape is called the stroke, while the interior color is termed the fill.
• When shapes are first created, they are described on the basis of text; that is, they are vector
• When / if all editing to the shape is completed, simply select Rasterize…from the layer menu.
• This converts the vector graphic (text description) into a raster image (a bitmap).
• If one desires to draw a straight line, hold the shift key while attempting to draw the line.
• Once can also choose to snap objects to the guidelines.
• If one desires to view a mapping of the colors of the pixels displayed in a given image, simply select histogram under the layer menu.