Graphics/Line Art: There are three ways to work with black and white graphics or line art: Multiply mode, Alpha Channels, and Multiply/Drop Shadow. To start either way you must first get your graphics or line art into the computer. You can scan in black and white drawings or you can scan in "line art" from the Dover Press books. You can also create your own vector graphics in Photoshop or Illustrator. If you are scanning you will want to scan at a resolution of 300 and you may need to scale your line art at the scanner if you need it bigger in your design. After you have scanned your line art: 1. Open it in Photoshop. 2. Open IMAGE>ADJUSTMENTS>LEVELS and use the white eyedropper to clean up the background; use the black eyedropper on the black lines. 3. Open IMAGE>ADJUSTMENTS>DESATURATE to take any color cast out. 4. Go to FILTER>SHARPEN>UNSHARP MASK and adjust AMOUNT to 500, RADIUS to 30, and THRESHOLD to 100 (these values made need to change based on your scan). 5. Use white paint to clean up any stray marks or parts of other line art. 6. Save your file. Using MULTIPLY blending mode: 1. Open the line art file you saved in Photoshop. 2. In the Layer Palette, make sure there is a layer underneath your line art layer and add a color besides white or black to this bottom layer. 3. Click on your line art layer to make sure it is the "blue" active layer and change the blending mode of this layer to MULTIPLY. You should be able to see your black lines and the white area should be transparent allowing you to see the colored background underneath. 4. SAVE AS a different file name so that your original line art file is not changed. Using ALPHA CHANNELS for Colored lines: 1. Open the original line art file you saved in Photoshop. 2. SELECT ALL. 3. EDIT>COPY. 4. Open Channel Palette by clicking on channel tab. 5. Hit NEW CHANNEL button next to trash can, this will show a black file on screen. 6. EDIT>PASTE. 7. IMAGE>ADJUST>INVERT 8. SELECT>DESELECT. 9. Hit LOAD CHANNEL AS SELECTION button, looks like dotted circle, and your lines will be selected. 10. Go back to the Layer Palette by clicking on the layer tab. 11. Make a new layer above the line art layer and turn the eyeball off on the line art layer. 12. Make sure the new layer is the "blue" active layer by clicking on it. 13. Hit the LAYER MASK button, looks like a rectangle with a hole in it, your selected lines will disappear and the layer mask will look like your lines. 14. Click on the thumbnail image next to the layer mask. 15. Pick a color and grab the brush tool. Start painting. 16. SAVE AS a different file name so that your original line art file is not changed. Using MULTIPLY/DROP SHADOW: 1. Open the original line art file you saved in Photoshop. 2. Use the magic wand to select all the white background around your line art, do select any white areas inside the outer edge. 3. Unlock the background layer, and add a new layer underneath as any color but white or black. 4. Delete the white background on the line art layer. 5. SELECT>DESELECT. 6. Change blending mode to MULITPLY on line art layer. 7. Make a new layer between line art and background. 8. Place cursor in thumbnail of line art and hold the command (mac) or control (pc) and click. This will select everything on the layer that is not transparent (the shape of your object-line art). 9. Go to the in between layer and start painting. The selection will make sure you don't go outside the lines and the paint on this layer will show underneath the line art. 10. For fun you can add a DROP SHADOW layer style to your line art layer. 11. SAVE AS a different file name so that your original line art file is not changed.
Pages to are hidden for
"Black And White Graphics"Please download to view full document