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- <tr>
- <th colspan="3" align="center">9.4. 
- <span lang="en" xml:lang="en">GIMPressionist</span>
- </th>
- </tr>
- <tr>
- <td width="20%" align="left"><a accesskey="p" href="plug-in-photocopy.html"><img src="../images/prev.png" alt="Prev" /></a> </td>
- <th width="60%" align="center">9. 
- <span lang="en" xml:lang="en">Artistic Filters</span>
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- </tr>
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- <hr />
- </div>
- <div class="sect2" lang="en" xml:lang="en">
- <div class="titlepage">
- <div>
- <div>
- <h3 class="title"><a id="plug-in-gimpressionist"></a>9.4. 
- <span lang="en" xml:lang="en">GIMPressionist</span>
- </h3>
- </div>
- <div>
- <div class="revhistory">
- <table border="1" width="100%" summary="Revision history">
- <tr>
- <th align="left" valign="top" colspan="3">
- <b>Revision History</b>
- </th>
- </tr>
- <tr>
- <td align="left">Revision $Revision: 2442 $</td>
- <td align="left">2006-10-19</td>
- <td align="left">j.h</td>
- </tr>
- </table>
- </div>
- </div>
- </div>
- </div>
- <a id="id2757494" class="indexterm"></a>
- <a id="id2757512" class="indexterm"></a>
- <div class="sect3" lang="en" xml:lang="en">
- <div class="titlepage">
- <div>
- <div>
- <h4 class="title"><a id="id2757521"></a>9.4.1. 
- <span lang="en" xml:lang="en">Overview</span>
- </h4>
- </div>
- </div>
- </div>
- <div class="figure">
- <a id="id2757532"></a>
- <p class="title">
- <b>Figure 16.159. 
- <span lang="en" xml:lang="en">
- The same image, before and after applying GIMPressionist
- </span>
- </b>
- </p>
- <div class="figure-contents">
- <div class="mediaobject">
- <img src="../images/filters/examples/taj_orig.jpg" alt="The same image, before and after applying GIMPressionist" />
- <div class="caption">
- <p>Original image</p>
- </div>
- </div>
- <div class="mediaobject">
- <img src="../images/filters/examples/artistic-taj-gimpressionist.jpg" alt="The same image, before and after applying GIMPressionist" />
- <div class="caption">
- <p>Filter “<span class="quote">GIMPressionist</span>” applied</p>
- </div>
- </div>
- </div>
- </div>
- <br class="figure-break" />
- <p>
- You can find this filter via the image menu under
- <span class="guimenu">Filte<span class="accel">r</span>s</span> ‚Üí <span class="guisubmenu"><span class="accel">A</span>rtistic</span> ‚Üí <span class="guimenuitem"><span class="accel">G</span>IMPressionist</span>
- </p>
- <p>
- It's the king of Artistic filters. It can do what Cubism and Apply
- Canvas do and much more. It gives your image the look of a painting.
- All is going as if your image was painted again on a paper and with a
- brush you'd have chosen. It works on the active layer or selection.
- </p>
- </div>
- <div class="sect3" lang="en" xml:lang="en">
- <div class="titlepage">
- <div>
- <div>
- <h4 class="title"><a id="id2757647"></a>9.4.2. 
- <span lang="en" xml:lang="en">Parameter Settings</span>
- </h4>
- </div>
- </div>
- </div>
- <div class="variablelist">
- <dl>
- <dt>
- <span class="term">Preview</span>
- </dt>
- <dd>
- <p>
- All your setting changes will appear in the Preview without
- affecting the image until you click on <span class="guibutton">OK</span>.
- The <span class="guibutton">Update</span> button refreshes the preview
- window (it is not automatic, Gimpressionist has so much work
- to do!), and the <span class="guibutton">Reset</span> button reverts to
- the original image.
- </p>
- </dd>
- <dt>
- <span class="term">Presets</span>
- </dt>
- <dd>
- <div class="figure">
- <a id="id2757710"></a>
- <p class="title">
- <b>Figure 16.160. 
- <span lang="en" xml:lang="en">
- “<span class="quote">Presets</span>” tab options
- </span>
- </b>
- </p>
- <div class="figure-contents">
- <div class="mediaobject">
- <img src="../images/filters/options-artistic-gimpressionist1.png" alt="Presets tab options" />
- </div>
- </div>
- </div>
- <br class="figure-break" />
- <p>
- GIMPressionist has a lot of parameters. When combined, they
- give an astronomical number of possibilities. So, it is important,
- when an interesting preset has been found, to save it and also to
- send it to the plugin author if exceptional. Per contra, the
- intricacy of all these parameters makes difficult understanding
- and foreseeing how each one works.
- </p>
- <div class="itemizedlist">
- <ul type="disc">
- <li>
- <p>
- <span class="guilabel">Save Current</span>: Save current parameters.
- You can give a name in the input box on the left and a short
- description in the dialog that appear.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Apply</span>: Load the parameters of the
- selected preset in the list.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Delete</span>: Delete the selected preset. You
- can delete only the presets you have created.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Refresh</span>: Update the preset list.
- </p>
- </li>
- </ul>
- </div>
- </dd>
- <dt>
- <span class="term">Paper tab</span>
- </dt>
- <dd>
- <div class="figure">
- <a id="id2757835"></a>
- <p class="title">
- <b>Figure 16.161. 
- <span lang="en" xml:lang="en">
- “<span class="quote">Paper</span>” tab options
- </span>
- </b>
- </p>
- <div class="figure-contents">
- <div class="mediaobject">
- <img src="../images/filters/options-artistic-gimpressionist2.png" alt="Paper tab options" />
- </div>
- </div>
- </div>
- <br class="figure-break" />
- <p>
- This tab concerns the texture of the canvas your image will be
- painted on. You have a list of textures and a
- <span class="guilabel">Preview</span> for the selected texture. A
- description is displayed on the right for every texture when
- selected.
- </p>
- <div class="variablelist">
- <dl>
- <dt>
- <span class="term">Invert</span>
- </dt>
- <dd>
- <p>
- Inverts the paper texture: what was a hollow turns to a bump
- and vice-versa.
- </p>
- </dd>
- <dt>
- <span class="term">Overlay</span>
- </dt>
- <dd>
- <p>
- Apply the paper as it, without embossing it. It looks like
- if a transparent paper has been overlayed on the image.
- </p>
- </dd>
- <dt>
- <span class="term">Scale</span>
- </dt>
- <dd>
- <p>
- Specifies the scale of the texture (in % of the original
- file): controls the graininess of the texture.
- </p>
- </dd>
- <dt>
- <span class="term">Relief</span>
- </dt>
- <dd>
- <p>
- Specifies the amount of embossing to apply (3-150).
- </p>
- </dd>
- </dl>
- </div>
- </dd>
- <dt>
- <span class="term">Brush tab</span>
- </dt>
- <dd>
- <div class="figure">
- <a id="id2757977"></a>
- <p class="title">
- <b>Figure 16.162. 
- <span lang="en" xml:lang="en">
- “<span class="quote">Brush</span>” tab options
- </span>
- </b>
- </p>
- <div class="figure-contents">
- <div class="mediaobject">
- <img src="../images/filters/options-artistic-gimpressionist3.png" alt="Brush tab options" />
- </div>
- </div>
- </div>
- <br class="figure-break" />
- <p>
- "Brush" is a general term for any material used to paint. A list
- of brushes is available with a <span class="guilabel">Preview</span> for
- the selected one.
- </p>
- <div class="variablelist">
- <dl>
- <dt>
- <span class="term">Gamma</span>
- </dt>
- <dd>
- <p>
- Changes the gamma (luminosity) of the selected brush. The
- gamma correction brightens or darkens midtones.
- </p>
- </dd>
- <dt>
- <span class="term">Select</span>
- </dt>
- <dd>
- <p>
- You can also use a brush pattern you have created by
- selecting its image (arrow button on the Select line). This
- image must be on your screen before you launch the filter to
- be taken in account. Of course, don't use big images.
- </p>
- <p>
- If your image has several layers, they also will be
- displayed in the Select list and can be used as a brush.
- When selected, the layer appears in the brush preview and
- the normal brush is deselected.
- </p>
- <p>
- The <span class="guibutton">Save as</span>
- button allows you to save the selected brush.
- </p>
- </dd>
- <dt>
- <span class="term">Aspect ratio</span>
- </dt>
- <dd>
- <p>
- Specifies the brush proportions, height (0 -1) and width (0
- +1).
- </p>
- </dd>
- <dt>
- <span class="term">Relief</span>
- </dt>
- <dd>
- <p>
- Specifies the amount of paint used for each stroke. This may
- evoke painting with a palette knife.
- </p>
- </dd>
- </dl>
- </div>
- </dd>
- <dt>
- <span class="term">Orientation tab</span>
- </dt>
- <dd>
- <div class="figure">
- <a id="id2758144"></a>
- <p class="title">
- <b>Figure 16.163. 
- <span lang="en" xml:lang="en">
- “<span class="quote">Orientation</span>” tab options
- </span>
- </b>
- </p>
- <div class="figure-contents">
- <div class="mediaobject">
- <img src="../images/filters/options-artistic-gimpressionist4.png" alt="Orientation tab options" />
- </div>
- </div>
- </div>
- <br class="figure-break" />
- <p>
- This tab allows to set the orientation of the brush strokes. A
- painter is not obliged to go over with the same paintbrush angle.
- To perform some effects, he can vary their orientation.
- </p>
- <div class="variablelist">
- <dl>
- <dt>
- <span class="term">Directions</span>
- </dt>
- <dd>
- <p>
- With this option, you can set how many times the brush will
- pass through a same place, with each time a different
- direction, resulting in a more and more thick paint.
- </p>
- </dd>
- <dt>
- <span class="term">Start Angle</span>
- </dt>
- <dd>
- <p>
- Specifies the general direction of the strokes, the angle
- that the angle range will start from. Directions are often
- chosen to give some movement to the image.
- </p>
- </dd>
- <dt>
- <span class="term">Angle Span</span>
- </dt>
- <dd>
- <p>
- Specifies the angle, the sector, of the stroke "fan".
- </p>
- </dd>
- <dt>
- <span class="term">Orientation</span>
- </dt>
- <dd>
- <p>
- Specifies the direction of the brush strokes.
- </p>
- <div class="itemizedlist">
- <ul type="disc">
- <li>
- <p>
- <span class="guilabel">Value</span>
- : Let the Value (luminosity) of the region determine the
- direction of the stroke.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Radius</span>
- : The distance from the center of the image determines
- the direction of the stroke.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Random</span>
- : Select a random direction for each stroke.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Radial</span>
- : Let the direction from the center determine the
- direction of the stroke.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Flowing</span>
- : Not a direction question here: the strokes follow a
- "flowing" pattern.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Hue</span>
- : Let the hue of the region determine the direction of
- the stroke.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Adaptive</span>
- : The brush direction that matches the original image
- the closest is selected.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Manual</span>
- : The <span class="guilabel">Edit</span> button opens the
- <a class="link" href="gimpressionist-orient-map-editor.html" title="9.5.  GIMPressionist - Orientation Map Editor">
- Edit orientation Map dialog
- </a>
- that allows you to set the directions manually.
- </p>
- </li>
- </ul>
- </div>
- </dd>
- </dl>
- </div>
- </dd>
- <dt>
- <span class="term">Size tab</span>
- </dt>
- <dd>
- <div class="figure">
- <a id="id2758433"></a>
- <p class="title">
- <b>Figure 16.164. 
- <span lang="en" xml:lang="en">
- “<span class="quote">Size</span>” tab options
- </span>
- </b>
- </p>
- <div class="figure-contents">
- <div class="mediaobject">
- <img src="../images/filters/options-artistic-gimpressionist5.png" alt="Size tab options" />
- </div>
- </div>
- </div>
- <br class="figure-break" />
- <p>
- This tab allows you to set the number of brush sizes that will be
- used to paint, the limits of variation of these sizes and the
- criterion used to determine them.
- </p>
- <div class="variablelist">
- <dl>
- <dt>
- <span class="term">Three Sliders</span>
- </dt>
- <dd>
- <p>
- You can specify how many brush sizes are to be used and
- their sizes.
- </p>
- <div class="itemizedlist">
- <ul type="disc">
- <li>
- <p>
- <span class="guilabel">Sizes</span>: The number of brush sizes to
- use.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Minimum Size</span> and
- <span class="guilabel">Maximum Size </span>: The brush sizes are
- between these two values. Greater the size, greater the
- length and width of strokes.
- </p>
- </li>
- </ul>
- </div>
- </dd>
- <dt>
- <span class="term">Sizes</span>
- </dt>
- <dd>
- <p>
- You have there options to specify how the size of strokes
- will be determined.
- </p>
- <div class="itemizedlist">
- <ul type="disc">
- <li>
- <p>
- <span class="guilabel">Value</span>: Let the Value (luminosity)
- of the region determine the size of the stroke.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Radius</span> : The distance from the
- center of the image determines the size of the stroke.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Random</span> : Select a random size for
- each stroke.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Radial</span> : Let the direction from the
- center determine the size of the stroke.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Flowing</span> : Not a length question
- here: the strokes follow a "flowing" pattern.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Hue</span> : Let the hue of
- the region determine the size of the stroke.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Adaptive</span> : The brush size that
- matches the original image the closest is selected.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Manual</span> : The
- <span class="guilabel">Edit</span> button opens the
- <a class="link" href="gimpressionist-size-map-editor.html" title="9.6.  GIMPressionist - Size Map Editor">Size Map
- Editor</a>. That allows you to specify the size of
- strokes by yourself.
- </p>
- </li>
- </ul>
- </div>
- </dd>
- </dl>
- </div>
- </dd>
- <dt>
- <span class="term">Placement tab</span>
- </dt>
- <dd>
- <div class="figure">
- <a id="id2758719"></a>
- <p class="title">
- <b>Figure 16.165. 
- <span lang="en" xml:lang="en">
- “<span class="quote">Placement</span>” tab options
- </span>
- </b>
- </p>
- <div class="figure-contents">
- <div class="mediaobject">
- <img src="../images/filters/options-artistic-gimpressionist6.png" alt="Placement tab options" />
- </div>
- </div>
- </div>
- <br class="figure-break" />
- <p>
- In this tab you can set how strokes will be distributed.
- </p>
- <div class="variablelist">
- <dl>
- <dt>
- <span class="term">Placement</span>
- </dt>
- <dd>
- <p>
- In the preview of the Orientation Map Editor, all small
- arrows look like a flow around objects. Inside this flow,
- strokes may be placed in two different ways:
- </p>
- <div class="itemizedlist">
- <ul type="disc">
- <li>
- <p>
- <span class="guilabel">Randomly</span>: Places strokes randomly.
- This produces a more realistic paint.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Evenly</span>: Strokes are evenly
- distributed across the image.
- </p>
- </li>
- </ul>
- </div>
- </dd>
- <dt>
- <span class="term">Stroke Density</span>
- </dt>
- <dd>
- <p>
- The greater the density the closer the strokes. With a low
- density, the paper or background may be visible in unstroke
- areas.
- </p>
- </dd>
- <dt>
- <span class="term">Centerize</span>
- </dt>
- <dd>
- <p>Focus brush strokes around center.</p>
- </dd>
- </dl>
- </div>
- </dd>
- <dt>
- <span class="term">Color tab</span>
- </dt>
- <dd>
- <div class="figure">
- <a id="id2758868"></a>
- <p class="title">
- <b>Figure 16.166. 
- <span lang="en" xml:lang="en">
- “<span class="quote">Color</span>” tab options
- </span>
- </b>
- </p>
- <div class="figure-contents">
- <div class="mediaobject">
- <img src="../images/filters/options-artistic-gimpressionist7.png" alt="Color tab options" />
- </div>
- </div>
- </div>
- <br class="figure-break" />
- <p>
- In this tab, you can set what the stroke color will be.
- </p>
- <div class="variablelist">
- <dl>
- <dt>
- <span class="term">Color</span>
- </dt>
- <dd>
- <p>
- You can set the stroke color in two ways:
- </p>
- <div class="itemizedlist">
- <ul type="disc">
- <li>
- <p>
- <span class="guilabel">Average under brush</span>: Stroke color
- is computed from the the average of all pixels under
- the brush.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Center of brush</span>: Samples the
- color from the pixel in the center of the brush.
- </p>
- </li>
- </ul>
- </div>
- </dd>
- <dt>
- <span class="term">Color Noise</span>
- </dt>
- <dd>
- <p>
- This slider, and its input box, allow you to introduce noise
- in the stroke color, that will look less homogeneous.
- </p>
- </dd>
- </dl>
- </div>
- </dd>
- <dt>
- <span class="term">General tab</span>
- </dt>
- <dd>
- <div class="figure">
- <a id="id2758998"></a>
- <p class="title">
- <b>Figure 16.167. 
- <span lang="en" xml:lang="en">
- “<span class="quote">General</span>” tab options
- </span>
- </b>
- </p>
- <div class="figure-contents">
- <div class="mediaobject">
- <img src="../images/filters/options-artistic-gimpressionist8.png" alt="General tab options" />
- </div>
- </div>
- </div>
- <br class="figure-break" />
- <p>
- In this tab you can set what will be the background and the relief
- of brush strokes.
- </p>
- <div class="variablelist">
- <dl>
- <dt>
- <span class="term">Background</span>
- </dt>
- <dd>
- <div class="itemizedlist">
- <ul type="disc">
- <li>
- <p>
- <span class="guilabel">Keep Original</span>: The original image
- will be used as a background.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">From Paper</span>: Copy the texture of
- the selected paper as a background.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Solid</span>: By clicking on the color
- dwell you can select a solid colored background.
- </p>
- </li>
- <li>
- <p>
- <span class="guilabel">Transparent</span>: Use a transparent
- background. Only the painted strokes will be visible.
- This option is available only if your image has an
- Alpha channel.
- </p>
- </li>
- </ul>
- </div>
- </dd>
- <dt>
- <span class="term">Paint Edges</span>
- </dt>
- <dd>
- <p>
- If it is disabled, a thin border will not be painted around
- the outside border of the image.
- </p>
- </dd>
- <dt>
- <span class="term">Tileable</span>
- </dt>
- <dd>
- <p>
- If checked, the resulting image will be seamlessly tileable.
- The right side will match the left side and the top will
- match the bottom. This is interesting if your image will be
- repeatedly used in a Web background.
- </p>
- </dd>
- <dt>
- <span class="term">Drop Shadow</span>
- </dt>
- <dd>
- <p>
- Add a shadow effect to each brush stroke.
- </p>
- </dd>
- <dt>
- <span class="term">Edge Darken</span>
- </dt>
- <dd>
- <p>
- How much to darken the edges of each brush stroke. This
- increases paint relief or thickness.
- </p>
- </dd>
- <dt>
- <span class="term">Shadow Darken</span>
- </dt>
- <dd>
- <p>How much to darken the brush shadow.</p>
- </dd>
- <dt>
- <span class="term">Shadow Depth</span>
- </dt>
- <dd>
- <p>
- How far apart from the object the drop shadow should be.
- </p>
- </dd>
- <dt>
- <span class="term">Shadow Blur</span>
- </dt>
- <dd>
- <p>How much to blur the drop shadow.</p>
- </dd>
- <dt>
- <span class="term">Deviation Threshold</span>
- </dt>
- <dd>
- <p>
- A bail-out value for adaptive selections of brush size.
- </p>
- </dd>
- </dl>
- </div>
- </dd>
- </dl>
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