Using the Photo Crosshatch filter
The Photo Crosshatch filter can convert a photographic image, or any rasterized image, into a hatched ink pen image. The filter converts the photo into a series of overlapping hatch layers, each hatch layer representing different lightness areas of the original photo. Since there are many hatch layers overlapping where the image is darkest, and few where the image is lightest, the result is a simulated crosshatched drawing of the original photographic image. Note: You can apply various hatch filters to images, to give the image the appearance of a pen drawing. (See Using the Pen & Ink filters.)
To convert a rasterized image into a crosshatched drawing: - Select a rasterized image.
- Choose Filter > Pen and Ink > Photo Crosshatch.
- Enter the number of hatch layers to create in the Hatch Layers text box. The maximum number of layers is 8. Each hatch layer receives a distribution of the lightness values between 0 and 255. For example, if you enter a Hatch Layer of 4, the first layer contains lightness values of 0 to 64, the second values of 0 to 128, the third values of 0 to 192, and the fourth values of 0 to 255.
- Use the slider under the histogram to adjust the weighting of the threshold levels toward light or dark. The histogram shows how many pixels of the hatched image fall into each value of lightness between 0 and 255. Use the middle slider to skew the threshold levels on each level toward light (by moving the slider to the right) or dark (by moving the slider to the left). Adjust the end sliders to moderate the highest levels of light (the rightmost slider) and dark (the leftmost slider).
- Use the sliders on the left side of the dialog box to adjust options as follows:
- Density adjusts the number of hatch elements applied to the selection, from .5 pt to 10 pts.
- Dispersion Noise controls the spacing of hatch elements, from 0 to 300%.
- Thickness controls the stroke weight of the hatch elements, from .1 pt to 10 pts. (This option is dimmed if the selection is unstroked.)
- Max. Line Length sets the length of the hatch elements, from 5 pts to 999 pts.
- Rotation Noise sets the amount of random rotation of objects within the hatch layers, from -360 degrees to 360 degrees.
- Rotation Variance sets the amount that each layer is rotated from the previous layer, from 0 to 100%.
- Top Angle sets the angle of rotation for the top-most hatch layer, from -360 degrees to 360 degrees.
- Click OK.
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