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| <p class="text-center"><a href="fx.html#AddNoiseImage">AddNoiseImage</a> • <a href="fx.html#BlueShiftImage">BlueShiftImage</a> • <a href="fx.html#CharcoalImage">CharcoalImage</a> • <a href="fx.html#ColorizeImage">ColorizeImage</a> • <a href="fx.html#ColorMatrixImage">ColorMatrixImage</a> • <a href="fx.html#FxImage">FxImage</a> • <a href="fx.html#ImplodeImage">ImplodeImage</a> • <a href="fx.html#The MorphImages">The MorphImages</a> • <a href="fx.html#PlasmaImage">PlasmaImage</a> • <a href="fx.html#PolaroidImage">PolaroidImage</a> • <a href="fx.html#MagickSepiaToneImage">MagickSepiaToneImage</a> • <a href="fx.html#ShadowImage">ShadowImage</a> • <a href="fx.html#SketchImage">SketchImage</a> • <a href="fx.html#SolarizeImage">SolarizeImage</a> • <a href="fx.html#SteganoImage">SteganoImage</a> • <a href="fx.html#StereoAnaglyphImage">StereoAnaglyphImage</a> • <a href="fx.html#SwirlImage">SwirlImage</a> • <a href="fx.html#TintImage">TintImage</a> • <a href="fx.html#VignetteImage">VignetteImage</a> • <a href="fx.html#WaveImage">WaveImage</a> • <a href="fx.html#WaveletDenoiseImage">WaveletDenoiseImage</a></p> |
| |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="AddNoiseImage">AddNoiseImage</a></h2> |
| |
| <p>AddNoiseImage() adds random noise to the image.</p> |
| |
| <p>The format of the AddNoiseImage method is:</p> |
| |
| <pre class="text"> |
| Image *AddNoiseImage(const Image *image,const NoiseType noise_type, |
| const double attenuate,ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>channel</dt> |
| <dd>the channel type. </dd> |
| |
| <dd> </dd> |
| <dt>noise_type</dt> |
| <dd> The type of noise: Uniform, Gaussian, Multiplicative, Impulse, Laplacian, or Poisson. </dd> |
| |
| <dd> </dd> |
| <dt>attenuate</dt> |
| <dd> attenuate the random distribution. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="BlueShiftImage">BlueShiftImage</a></h2> |
| |
| <p>BlueShiftImage() mutes the colors of the image to simulate a scene at nighttime in the moonlight.</p> |
| |
| <p>The format of the BlueShiftImage method is:</p> |
| |
| <pre class="text"> |
| Image *BlueShiftImage(const Image *image,const double factor, |
| ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>factor</dt> |
| <dd>the shift factor. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="CharcoalImage">CharcoalImage</a></h2> |
| |
| <p>CharcoalImage() creates a new image that is a copy of an existing one with the edge highlighted. It allocates the memory necessary for the new Image structure and returns a pointer to the new image.</p> |
| |
| <p>The format of the CharcoalImage method is:</p> |
| |
| <pre class="text"> |
| Image *CharcoalImage(const Image *image,const double radius, |
| const double sigma,ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>radius</dt> |
| <dd>the radius of the pixel neighborhood. </dd> |
| |
| <dd> </dd> |
| <dt>sigma</dt> |
| <dd>the standard deviation of the Gaussian, in pixels. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="ColorizeImage">ColorizeImage</a></h2> |
| |
| <p>ColorizeImage() blends the fill color with each pixel in the image. A percentage blend is specified with opacity. Control the application of different color components by specifying a different percentage for each component (e.g. 90/100/10 is 90 red, 100 green, and 10 blue).</p> |
| |
| <p>The format of the ColorizeImage method is:</p> |
| |
| <pre class="text"> |
| Image *ColorizeImage(const Image *image,const char *blend, |
| const PixelInfo *colorize,ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>blend</dt> |
| <dd> A character string indicating the level of blending as a percentage. </dd> |
| |
| <dd> </dd> |
| <dt>colorize</dt> |
| <dd>A color value. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="ColorMatrixImage">ColorMatrixImage</a></h2> |
| |
| <p>ColorMatrixImage() applies color transformation to an image. This method permits saturation changes, hue rotation, luminance to alpha, and various other effects. Although variable-sized transformation matrices can be used, typically one uses a 5x5 matrix for an RGBA image and a 6x6 for CMYKA (or RGBA with offsets). The matrix is similar to those used by Adobe Flash except offsets are in column 6 rather than 5 (in support of CMYKA images) and offsets are normalized (divide Flash offset by 255).</p> |
| |
| <p>The format of the ColorMatrixImage method is:</p> |
| |
| <pre class="text"> |
| Image *ColorMatrixImage(const Image *image, |
| const KernelInfo *color_matrix,ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>color_matrix</dt> |
| <dd> the color matrix. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="FxImage">FxImage</a></h2> |
| |
| <p>FxImage() applies a mathematical expression to the specified image.</p> |
| |
| <p>The format of the FxImage method is:</p> |
| |
| <pre class="text"> |
| Image *FxImage(const Image *image,const char *expression, |
| ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>expression</dt> |
| <dd>A mathematical expression. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="ImplodeImage">ImplodeImage</a></h2> |
| |
| <p>ImplodeImage() creates a new image that is a copy of an existing one with the image pixels "implode" by the specified percentage. It allocates the memory necessary for the new Image structure and returns a pointer to the new image.</p> |
| |
| <p>The format of the ImplodeImage method is:</p> |
| |
| <pre class="text"> |
| Image *ImplodeImage(const Image *image,const double amount, |
| const PixelInterpolateMethod method,ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>implode_image</dt> |
| <dd>Method ImplodeImage returns a pointer to the image after it is implode. A null image is returned if there is a memory shortage. </dd> |
| |
| <dd> </dd> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>amount</dt> |
| <dd> Define the extent of the implosion. </dd> |
| |
| <dd> </dd> |
| <dt>method</dt> |
| <dd>the pixel interpolation method. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="The_MorphImages">The MorphImages</a></h2> |
| |
| <p>The MorphImages() method requires a minimum of two images. The first image is transformed into the second by a number of intervening images as specified by frames.</p> |
| |
| <p>The format of the MorphImage method is:</p> |
| |
| <pre class="text"> |
| Image *MorphImages(const Image *image,const size_t number_frames, |
| ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>number_frames</dt> |
| <dd> Define the number of in-between image to generate. The more in-between frames, the smoother the morph. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="PlasmaImage">PlasmaImage</a></h2> |
| |
| <p>PlasmaImage() initializes an image with plasma fractal values. The image must be initialized with a base color and the random number generator seeded before this method is called.</p> |
| |
| <p>The format of the PlasmaImage method is:</p> |
| |
| <pre class="text"> |
| MagickBooleanType PlasmaImage(Image *image,const SegmentInfo *segment, |
| size_t attenuate,size_t depth,ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>segment</dt> |
| <dd> Define the region to apply plasma fractals values. </dd> |
| |
| <dd> </dd> |
| <dt>attenuate</dt> |
| <dd>Define the plasma attenuation factor. </dd> |
| |
| <dd> </dd> |
| <dt>depth</dt> |
| <dd>Limit the plasma recursion depth. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="PolaroidImage">PolaroidImage</a></h2> |
| |
| <p>PolaroidImage() simulates a Polaroid picture.</p> |
| |
| <p>The format of the PolaroidImage method is:</p> |
| |
| <pre class="text"> |
| Image *PolaroidImage(const Image *image,const DrawInfo *draw_info, |
| const char *caption,const double angle, |
| const PixelInterpolateMethod method,ExceptionInfo exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>draw_info</dt> |
| <dd>the draw info. </dd> |
| |
| <dd> </dd> |
| <dt>caption</dt> |
| <dd>the Polaroid caption. </dd> |
| |
| <dd> </dd> |
| <dt>angle</dt> |
| <dd>Apply the effect along this angle. </dd> |
| |
| <dd> </dd> |
| <dt>method</dt> |
| <dd>the pixel interpolation method. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="MagickSepiaToneImage">MagickSepiaToneImage</a></h2> |
| |
| <p>MagickSepiaToneImage() applies a special effect to the image, similar to the effect achieved in a photo darkroom by sepia toning. Threshold ranges from 0 to QuantumRange and is a measure of the extent of the sepia toning. A threshold of 80 is a good starting point for a reasonable tone.</p> |
| |
| <p>The format of the SepiaToneImage method is:</p> |
| |
| <pre class="text"> |
| Image *SepiaToneImage(const Image *image,const double threshold, |
| ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>threshold</dt> |
| <dd>the tone threshold. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="ShadowImage">ShadowImage</a></h2> |
| |
| <p>ShadowImage() simulates a shadow from the specified image and returns it.</p> |
| |
| <p>The format of the ShadowImage method is:</p> |
| |
| <pre class="text"> |
| Image *ShadowImage(const Image *image,const double alpha, |
| const double sigma,const ssize_t x_offset,const ssize_t y_offset, |
| ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>alpha</dt> |
| <dd>percentage transparency. </dd> |
| |
| <dd> </dd> |
| <dt>sigma</dt> |
| <dd>the standard deviation of the Gaussian, in pixels. </dd> |
| |
| <dd> </dd> |
| <dt>x_offset</dt> |
| <dd>the shadow x-offset. </dd> |
| |
| <dd> </dd> |
| <dt>y_offset</dt> |
| <dd>the shadow y-offset. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="SketchImage">SketchImage</a></h2> |
| |
| <p>SketchImage() simulates a pencil sketch. We convolve the image with a Gaussian operator of the given radius and standard deviation (sigma). For reasonable results, radius should be larger than sigma. Use a radius of 0 and SketchImage() selects a suitable radius for you. Angle gives the angle of the sketch.</p> |
| |
| <p>The format of the SketchImage method is:</p> |
| |
| <pre class="text"> |
| Image *SketchImage(const Image *image,const double radius, |
| const double sigma,const double angle,ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>radius</dt> |
| <dd>the radius of the Gaussian, in pixels, not counting the center pixel. </dd> |
| |
| <dd> </dd> |
| <dt>sigma</dt> |
| <dd>the standard deviation of the Gaussian, in pixels. </dd> |
| |
| <dd> </dd> |
| <dt>angle</dt> |
| <dd>apply the effect along this angle. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="SolarizeImage">SolarizeImage</a></h2> |
| |
| <p>SolarizeImage() applies a special effect to the image, similar to the effect achieved in a photo darkroom by selectively exposing areas of photo sensitive paper to light. Threshold ranges from 0 to QuantumRange and is a measure of the extent of the solarization.</p> |
| |
| <p>The format of the SolarizeImage method is:</p> |
| |
| <pre class="text"> |
| MagickBooleanType SolarizeImage(Image *image,const double threshold, |
| ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>threshold</dt> |
| <dd> Define the extent of the solarization. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="SteganoImage">SteganoImage</a></h2> |
| |
| <p>SteganoImage() hides a digital watermark within the image. Recover the hidden watermark later to prove that the authenticity of an image. Offset defines the start position within the image to hide the watermark.</p> |
| |
| <p>The format of the SteganoImage method is:</p> |
| |
| <pre class="text"> |
| Image *SteganoImage(const Image *image,Image *watermark, |
| ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>watermark</dt> |
| <dd>the watermark image. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="StereoAnaglyphImage">StereoAnaglyphImage</a></h2> |
| |
| <p>StereoAnaglyphImage() combines two images and produces a single image that is the composite of a left and right image of a stereo pair. Special red-green stereo glasses are required to view this effect.</p> |
| |
| <p>The format of the StereoAnaglyphImage method is:</p> |
| |
| <pre class="text"> |
| Image *StereoImage(const Image *left_image,const Image *right_image, |
| ExceptionInfo *exception) |
| Image *StereoAnaglyphImage(const Image *left_image, |
| const Image *right_image,const ssize_t x_offset,const ssize_t y_offset, |
| ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>left_image</dt> |
| <dd>the left image. </dd> |
| |
| <dd> </dd> |
| <dt>right_image</dt> |
| <dd>the right image. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| <dt>x_offset</dt> |
| <dd>amount, in pixels, by which the left image is offset to the right of the right image. </dd> |
| |
| <dd> </dd> |
| <dt>y_offset</dt> |
| <dd>amount, in pixels, by which the left image is offset to the bottom of the right image. </dd> |
| |
| <dd> </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="SwirlImage">SwirlImage</a></h2> |
| |
| <p>SwirlImage() swirls the pixels about the center of the image, where degrees indicates the sweep of the arc through which each pixel is moved. You get a more dramatic effect as the degrees move from 1 to 360.</p> |
| |
| <p>The format of the SwirlImage method is:</p> |
| |
| <pre class="text"> |
| Image *SwirlImage(const Image *image,double degrees, |
| const PixelInterpolateMethod method,ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>degrees</dt> |
| <dd>Define the tightness of the swirling effect. </dd> |
| |
| <dd> </dd> |
| <dt>method</dt> |
| <dd>the pixel interpolation method. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="TintImage">TintImage</a></h2> |
| |
| <p>TintImage() applies a color vector to each pixel in the image. The length of the vector is 0 for black and white and at its maximum for the midtones. The vector weighting function is f(x)=(1-(4.0*((x-0.5)*(x-0.5))))</p> |
| |
| <p>The format of the TintImage method is:</p> |
| |
| <pre class="text"> |
| Image *TintImage(const Image *image,const char *blend, |
| const PixelInfo *tint,ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>blend</dt> |
| <dd>A color value used for tinting. </dd> |
| |
| <dd> </dd> |
| <dt>tint</dt> |
| <dd>A color value used for tinting. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="VignetteImage">VignetteImage</a></h2> |
| |
| <p>VignetteImage() softens the edges of the image in vignette style.</p> |
| |
| <p>The format of the VignetteImage method is:</p> |
| |
| <pre class="text"> |
| Image *VignetteImage(const Image *image,const double radius, |
| const double sigma,const ssize_t x,const ssize_t y, |
| ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>radius</dt> |
| <dd>the radius of the pixel neighborhood. </dd> |
| |
| <dd> </dd> |
| <dt>sigma</dt> |
| <dd>the standard deviation of the Gaussian, in pixels. </dd> |
| |
| <dd> </dd> |
| <dt>x, y</dt> |
| <dd> Define the x and y ellipse offset. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="WaveImage">WaveImage</a></h2> |
| |
| <p>WaveImage() creates a "ripple" effect in the image by shifting the pixels vertically along a sine wave whose amplitude and wavelength is specified by the given parameters.</p> |
| |
| <p>The format of the WaveImage method is:</p> |
| |
| <pre class="text"> |
| Image *WaveImage(const Image *image,const double amplitude, |
| const double wave_length,const PixelInterpolateMethod method, |
| ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>amplitude, wave_length</dt> |
| <dd> Define the amplitude and wave length of the sine wave. </dd> |
| |
| <dd> </dd> |
| <dt>interpolate</dt> |
| <dd>the pixel interpolation method. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| <h2><a href="../../api/MagickCore/fx_8c.html" id="WaveletDenoiseImage">WaveletDenoiseImage</a></h2> |
| |
| <p>WaveletDenoiseImage() removes noise from the image using a wavelet transform. The wavelet transform is a fast hierarchical scheme for processing an image using a set of consecutive lowpass and high_pass filters, followed by a decimation. This results in a decomposition into different scales which can be regarded as different “frequency bands”, determined by the mother wavelet. Adapted from dcraw.c by David Coffin.</p> |
| |
| <p>The format of the WaveletDenoiseImage method is:</p> |
| |
| <pre class="text"> |
| Image *WaveletDenoiseImage(const Image *image,const double threshold, |
| const double softness,ExceptionInfo *exception) |
| </pre> |
| |
| <p>A description of each parameter follows:</p> |
| |
| <dd> |
| </dd> |
| |
| <dd> </dd> |
| <dl class="dl-horizontal"> |
| <dt>image</dt> |
| <dd>the image. </dd> |
| |
| <dd> </dd> |
| <dt>threshold</dt> |
| <dd>set the threshold for smoothing. </dd> |
| |
| <dd> </dd> |
| <dt>softness</dt> |
| <dd>attenuate the smoothing threshold. </dd> |
| |
| <dd> </dd> |
| <dt>exception</dt> |
| <dd>return any errors or warnings in this structure. </dd> |
| |
| <dd> </dd> |
| </dl> |
| </div> |
| </div> |
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