lsseg::UpdatableImage Class Reference

Display the pixel distribution of the image as a graph (histogram).Graphical display of an Image, with basic user interaction functionality. More...

#include <cimg_dependent.h>

List of all members.

Public Member Functions
	UpdatableImage (const Image< double > &img, const char *name=0)
	~UpdatableImage ()
	Destructor. This will also remove the Image<double> from screen for good.
void	update (const Image< double > &img, bool reshape=false)
	Update the displayed image.
void	interact ()
	invoking this method will halt the program while the user is allowed to interact with the displayed image.
void	connect (UpdatableImage &rhs)
	connect this UpdatableImage with another one.
Private Attributes
Pimpl *	p_

---

Detailed Description

Display the pixel distribution of the image as a graph (histogram).Graphical display of an Image, with basic user interaction functionality.

This class is useful for debugging and demonstration purposes. Upon construction it immediately shows the concerned Image on the user display, where it remains as long as the constructed object exists. The image can be successively updated, allowing for slideshows or basic animations. The user can also be allowed basic interaction with the image, like resizing it or inspecting pixel values. Several UpdatableImages can also be connected, meaning that resizing one of them will automatically resize all the others, and inspecting pixel values in one will also return the corresponding pixel values in the connected UpdatableImages.

Note:

This class is only intended for debugging/simple demonstrations. Its implementation is not very rigorous and it is not intended to be used in any serious setting.

Definition at line 165 of file cimg_dependent.h.

---

Constructor & Destructor Documentation

lsseg::UpdatableImage::UpdatableImage	(	const Image< double > &	img,
		const char *	name = 0
	)

Upon construction, the image img will immediately be displayed on the user's screen (and stay there). If name points to a text string, the contents of that string will become the display window's name.

Definition at line 313 of file cimg_dependent.C.

lsseg::UpdatableImage::~UpdatableImage

(

)

Destructor. This will also remove the Image<double> from screen for good.

Definition at line 315 of file cimg_dependent.C.

---

Member Function Documentation

void lsseg::UpdatableImage::connect

(

UpdatableImage &

rhs

)

connect this UpdatableImage with another one.

Connected UpdatableImages will react in unison when the user resizes one of them or when she inspects pixel values.

Definition at line 318 of file cimg_dependent.C.

void lsseg::UpdatableImage::interact

(

)

invoking this method will halt the program while the user is allowed to interact with the displayed image.

The user is able to do the following after this method is called:

• Inspecting the RGB value of a pixel of the UpdatableImage (and the corresponding pixels in all the UpdatableImage's connected UpdatableImages) by clicking on it with the left mouse button. Result will be written to standard output.
• Resize the display window (and all its connected UpdatableImages display windows).
• Using the middle mouse button for something. No functionality for this is yet implemented, but it should be easy for the developer to fill in something useful.
• return control to the program by pushing space bar or the right mouse button.

Definition at line 317 of file cimg_dependent.C.

void lsseg::UpdatableImage::update	(	const Image< double > &	img,
		bool	reshape = false
	)

Update the displayed image.

Parameters:

	img	the displayed image will be replaced by the contents of this image.
	reshape	if true, the display window will be reshaped to the shape of the argument img. Otherwise, it will retain its old shape although its image contents has changed (resulting in a displayed image with a possibly altered aspect ratio).

Definition at line 316 of file cimg_dependent.C.

---

Member Data Documentation

Pimpl* lsseg::UpdatableImage::p_ [private]

pointer-to-implementation paradigm used here in order to avoid having to include the very long header file CImg.h into this header file.

Definition at line 210 of file cimg_dependent.h.

---

The documentation for this class was generated from the following files:

• /home/oan/prosjekt/gotools/segmentation/gpl_distro/lsseg_1.0_gpl/include/cimg_dependent.h
• /home/oan/prosjekt/gotools/segmentation/gpl_distro/lsseg_1.0_gpl/src/cimg_dependent.C

---