Plots a single value in an image. The value will be scaled; notice that alpha channel is scaled by default.  
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|  | ImageBox (const ImageBox &op) | 
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| virtual void | traverseChannels (ImageTray< Channel > &dst) const | 
|  | Run this modifier for a set of channels. 
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| virtual int | srcAlpha () const | 
|  | Tell if alpha channel(s) is required in input. 
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| virtual void | process (Image &dst) const | 
|  | Run this modifier for an image. 
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| virtual void | traverseChannel (Channel &dst) const | 
|  | Run this modifier for an image frame. 
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| virtual void | traverseChannel (Channel &dst, Channel &dstAlpha) const | 
|  | Run this modifier for an image frame. 
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| virtual void | help (std::ostream &ostr=std::cout) const | 
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| virtual void | traverseChannels (ImageFrame &dst) const | 
|  | Converts dst to ImageTray<Channel> and calls traverseFrame(ImageTray<Channel> &) . 
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|  | BeanLike (const BeanLike &b) | 
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|  | BeanLike (const std::string &name, const std::string &description="") | 
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| virtual const std::string & | getName () const | 
|  | Return the name of an instance. 
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| virtual const std::string & | getDescription () const | 
|  | Return a brief description. 
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| bool | hasParameters () const | 
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| template<class F > | 
| F | getParameter (const std::string &p) const | 
|  | Gets a single parameter. 
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| const map_t & | getParameters () const | 
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| map_t & | getParameters () | 
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| template<class F > | 
| void | setParametersFromEntries (const F &args) | 
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| void | setParameters (std::initializer_list< Variable::init_pair_t > args) | 
|  | Grants access to (if above hidden) 
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| virtual void | setParameters (const std::string &p, char assignmentSymbol='=', char separatorSymbol=0) | 
|  | Sets comma-separated parameters in a predetermined order "a,b,c" or by specifing them "b=2". 
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| template<class T > | 
| void | setParameters (const std::map< std::string, T > &args) | 
|  | Set parameters. 
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| template<class T > | 
| void | setParameters (const SmartMap< T > &args) | 
|  | Set parameters. 
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| void | setParameter (const std::string &p, const Castable &value) | 
|  | Sets a single parameter. 
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| template<class T > | 
| void | setParameter (const std::string &p, const VariableT< T > &value) | 
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| template<class F > | 
| void | setParameter (const std::string &p, const F &value) | 
|  | Sets a single parameter. 
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| template<class F > | 
| void | setParameter (const std::string &p, std::initializer_list< F > value) | 
|  | Sets a single parameter. 
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| BeanLike & | operator= (const BeanLike &b) | 
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| virtual std::ostream & | toStream (std::ostream &ostr, bool compact=true) const | 
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| typedef ReferenceMap | map_t | 
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|  | ImageMod (const std::string &name=__FUNCTION__, const std::string &description="") | 
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|  | ImageMod (const ImageMod &op) | 
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| virtual void | processChannelsSeparately (ImageTray< Channel > &dst) const | 
|  | Run this modifier by calling traverseChannel(Channel &) for each image. 
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| virtual void | initialize (Image &dst) const | 
|  | Modifies the geometry and the type of dst such that traverseChannel(Channel &) can be called. 
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| virtual void | initializeAlpha (const Image &srcAlpha, Image &dstAlpha) const | 
|  | Modifies the geometry and the type of dst such that traverseChannel(Channel &) can be called. 
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| virtual void | storeLastArguments (const std::string &p) | 
|  | Called after setParameters() 
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| virtual void | updateBean () const | 
|  | Called after setParameters() 
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| const std::string | name | 
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| const std::string | description | 
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| map_t | parameters | 
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Plots a single value in an image. The value will be scaled; notice that alpha channel is scaled by default. 
drainage --geometry 256,256,1 --box 112:144,144:176,192  -o boxes.png
drainage --geometry 256,256,1 --box 112:144,144:176,192 --target S --iCopy f -o boxes-16b.png
drainage --geometry 256,256,3,1 --box 96:100,96:100,255:64:32:255  --box 128:132,160:166,64:32:255:192  -o boxes-rgba.png
drainage --geometry 256,256,3,1 --box 96:100,96:100,255:64:32:255  --box 128:132,160:166,64:32:255:192 --target S --iCopy f -o boxes-rgba-16b.png