dimo2img.h

转化为DIB位图再显示出来的dicom文件C++代码

/*
 *
 *  Copyright (C) 1996-2005, OFFIS
 *
 *  This software and supporting documentation were developed by
 *
 *    Kuratorium OFFIS e.V.
 *    Healthcare Information and Communication Systems
 *    Escherweg 2
 *    D-26121 Oldenburg, Germany
 *
 *  THIS SOFTWARE IS MADE AVAILABLE,  AS IS,  AND OFFIS MAKES NO  WARRANTY
 *  REGARDING  THE  SOFTWARE,  ITS  PERFORMANCE,  ITS  MERCHANTABILITY  OR
 *  FITNESS FOR ANY PARTICULAR USE, FREEDOM FROM ANY COMPUTER DISEASES  OR
 *  ITS CONFORMITY TO ANY SPECIFICATION. THE ENTIRE RISK AS TO QUALITY AND
 *  PERFORMANCE OF THE SOFTWARE IS WITH THE USER.
 *
 *  Module:  dcmimgle
 *
 *  Author:  Joerg Riesmeier
 *
 *  Purpose: DicomMonochrome2Image (Header)
 *
 *  Last Update:      $Author: meichel $
 *  Update Date:      $Date: 2005/12/08 16:47:47 $
 *  CVS/RCS Revision: $Revision: 1.15 $
 *  Status:           $State: Exp $
 *
 *  CVS/RCS Log at end of file
 *
 */


#ifndef DIMO2IMG_H
#define DIMO2IMG_H

#include "dcmtk/config/osconfig.h"
#include "dcmtk/dcmdata/dctypes.h"

#include "dcmtk/dcmimgle/dimoimg.h"


/*---------------------*
 *  class declaration  *
 *---------------------*/

/** Class for MONOCHROME2 images
 */
class DiMono2Image
  : public DiMonoImage
{

 public:

    /** constructor
     *
     ** @param  docu    pointer to dataset (encapsulated)
     *  @param  status  current image status
     */
    DiMono2Image(const DiDocument *docu,
                 const EI_Status status);

    /** constructor, modality (linear)
     *
     ** @param  docu       pointer to dataset (encapsulated)
     *  @param  status     current image status
     *  @param  slope      rescale slope
     *  @param  intercept  rescale intercept
     */
    DiMono2Image(const DiDocument *docu,
                 const EI_Status status,
                 const double slope,
                 const double intercept);

    /** constructor, modality (LUT)
     *
     ** @param  docu         pointer to dataset (encapsulated)
     *  @param  status       current image status
     *  @param  data         element containing the modality LUT data
     *  @param  descriptor   element containing the modality LUT descriptor
     *  @param  explanation  element containing the modality LUT explanation (optional)
     */
    DiMono2Image(const DiDocument *docu,
                 const EI_Status status,
                 const DcmUnsignedShort &data,
                 const DcmUnsignedShort &descriptor,
                 const DcmLongString *explanation);

    /** constructor, convert color images to monochrome
     *
     ** @param  image  pointer to reference image
     *  @param  red    coefficient by which the red component is weighted
     *  @param  green  coefficient by which the green component is weighted
     *  @param  blue   coefficient by which the blue component is weighted
     */
    DiMono2Image(const DiColorImage *image,
                 const double red,
                 const double green,
                 const double blue);

    /** constructor, createMonoOutput
     *
     ** @param  image   pointer to reference image
     *  @param  pixel   pointer to output pixel data used for the new image
     *  @param  frame   number of frame stored in the new image object
     *  @param  stored  number of bits stored
     *  @param  alloc   number of bits allocated
     */
    DiMono2Image(const DiMonoImage *image,
                 DiMonoOutputPixel *pixel,
                 const unsigned long frame,
                 const int stored,
                 const int alloc);

    /** destructor
     */
    virtual ~DiMono2Image();

    /** get color model of internal pixel representation.
     *  @return always returns EPI_Monochrome2
     */
    virtual EP_Interpretation getInternalColorModel() const
    {
        return EPI_Monochrome2;
    }

    /** get pixel data with specified format.
     *  (memory is handled internally)
     *
     ** @param  frame   number of frame to be rendered
     *  @param  bits    number of bits for the output pixel data (depth)
     *  @param  planar  flags, whether the output data (for multi-planar images) should be planar or not
     *
     ** @return untyped pointer to the pixel data if successful, NULL otherwise
     */
    virtual const void *getOutputData(const unsigned long frame,
                                      const int bits,
                                      const int planar = 0);

    /** get pixel data with specified format.
     *  (memory is handled externally)
     *
     ** @param  buffer  untyped pointer to the externally allocated memory buffer
     *  @param  size    size of the memory buffer in bytes (will be checked)
     *  @param  frame   number of frame to be rendered
     *  @param  bits    number of bits for the output pixel data (depth)
     *  @param  planar  flags, whether the output data (for multi-planar images) should be planar or not
     *
     ** @return status, true if successful, false otherwise
     */
    virtual int getOutputData(void *buffer,
                              const unsigned long size,
                              const unsigned long frame,
                              const int bits,
                              const int planar = 0);

    /** create copy of current image object
     *
     ** @param  fstart  first frame to be processed
     *  @param  fcount  number of frames
     *
     ** @return pointer to new DicomImage object (NULL if an error occurred)
     */
    DiImage *createImage(const unsigned long fstart,
                         const unsigned long fcount) const;

    /** create scaled copy of specified (clipping) area of the current image object.
     *
     ** @param  left_pos      x coordinate of top left corner of area to be scaled
     *                        (referring to image origin, negative values create a border around the image)
     *  @param  top_pos       y coordinate of top left corner of area to be scaled
     *  @param  clip_width    width of area to be scaled
     *  @param  clip_height   height of area to be scaled
     *  @param  scale_width   width of scaled image (in pixels)
     *  @param  scale_height  height of scaled image (in pixels)
     *  @param  interpolate   specifies whether scaling algorithm should use interpolation (if necessary)
     *                        default: no interpolation (0), 1 = pbmplus algorithm, 2 = c't algorithm
     *  @param  aspect        specifies whether pixel aspect ratio should be taken into consideration
     *                        (if true, width OR height should be 0, i.e. this component will be calculated
     *                         automatically)
     *  @param  pvalue        P-value used for the border outside the image (0..65535)
     *
     ** @return pointer to new DiImage object (NULL if an error occurred)
     */
    DiImage *createScale(const signed long left_pos,
                         const signed long top_pos,
                         const unsigned long clip_width,
                         const unsigned long clip_height,
                         const unsigned long scale_width,
                         const unsigned long scale_height,
                         const int interpolate,
                         const int aspect,
                         const Uint16 pvalue) const;

    /** create a flipped copy of the current image
     *
     ** @param  horz  flip horizontally if true
     *  @param  vert  flip vertically if true
     *
     ** @return pointer to new DiImage object (NULL if an error occurred)
     */
    DiImage *createFlip(const int horz,
                        const int vert) const;

    /** create a rotated copy of the current image.
     *
     ** @param  degree  angle by which the image shall be rotated
     *
     ** @return pointer to new DiImage object (NULL if an error occurred)
     */
    DiImage *createRotate(const int degree) const;

    /** create monochrome copy of the current image.
     *  Since the image is already monochrome the effect is the same as with createImage().
     *
     ** @param  dummy1  not used
     *  @param  dummy2  not used
     *  @param  dummy3  not used
     *
     ** @return pointer to new DiImage object (NULL if an error occurred)
     */
    DiImage *createMono(const double dummy1,
                        const double dummy2,
                        const double dummy3) const;


 protected:

    /** constructor
     *
     ** @param  docu    pointer to dataset (encapsulated)
     *  @param  status  current image status
     *  @param  dummy   (necessary to be different from another constructor)
     */
    DiMono2Image(const DiDocument *docu,
                 const EI_Status status,
                 const char dummy);

    /** constructor, copy
     *
     ** @param  image   pointer to reference image
     *  @param  fstart  first frame to be processed
     *  @param  fcount  number of frames
     */
    DiMono2Image(const DiMonoImage *image,
                 const unsigned long fstart,
                 const unsigned long fcount);

    /** constructor, scale/clip
     *
     ** @param  image         pointer to reference image
     *  @param  left_pos      x coordinate of top left corner of area to be scaled
     *                        (referring to image origin, negative values create a border around the image)
     *  @param  top_pos       y coordinate of top left corner of area to be scaled
     *  @param  src_cols      width of area to be scaled
     *  @param  src_rows      height of area to be scaled
     *  @param  dest_cols     width of scaled image (in pixels)
     *  @param  dest_rows     height of scaled image (in pixels)
     *  @param  interpolate   specifies whether scaling algorithm should use interpolation (if necessary)
     *                        default: no interpolation (0), 1 = pbmplus algorithm, 2 = c't algorithm
     *  @param  aspect        specifies whether pixel aspect ratio should be taken into consideration
     *                        (if true, width OR height should be 0, i.e. this component will be calculated
     *                         automatically)
     *  @param  pvalue        P-value used for the border outside the image (0..65535)
     */
    DiMono2Image(const DiMonoImage *image,
                 const signed long left_pos,
                 const signed long top_pos,
                 const Uint16 src_cols,
                 const Uint16 src_rows,
                 const Uint16 dest_cols,
                 const Uint16 dest_rows,
                 const int interpolate = 0,
                 const int aspect = 0,
                 const Uint16 pvalue = 0);

    /** constructor, flip
     *
     ** @param  image  pointer to reference image
     ** @param  horz   flip horizontally if true
     *  @param  vert   flip vertically if true
     */
    DiMono2Image(const DiMonoImage *image,
                 const int horz,
                 const int vert);

    /** constructor, rotate
     *
     ** @param  image   pointer to reference image
     *  @param  degree  angle by which the image shall be rotated
     */
    DiMono2Image(const DiMonoImage *image,
                 const int degree);
};


#endif


/*
 *
 * CVS/RCS Log:
 * $Log: dimo2img.h,v $
 * Revision 1.15  2005/12/08 16:47:47  meichel
 * Changed include path schema for all DCMTK header files
 *
 * Revision 1.14  2004/02/06 11:07:50  joergr
 * Distinguish more clearly between const and non-const access to pixel data.
 *
 * Revision 1.13  2003/12/08 18:25:12  joergr
 * Removed leading underscore characters from preprocessor symbols (reserved
 * symbols). Updated CVS header.
 *
 * Revision 1.12  2003/06/12 15:08:34  joergr
 * Fixed inconsistent API documentation reported by Doxygen.
 *
 * Revision 1.11  2002/12/09 13:32:52  joergr
 * Renamed parameter/local variable to avoid name clashes with global
 * declaration left and/or right (used for as iostream manipulators).
 *
 * Revision 1.10  2001/11/27 18:18:23  joergr
 * Added support for plugable output formats in class DicomImage. First
 * implementation is JPEG.
 *
 * Revision 1.9  2001/06/01 15:49:44  meichel
 * Updated copyright header
 *
 * Revision 1.8  2000/03/08 16:24:18  meichel
 * Updated copyright header.
 *
 * Revision 1.7  1999/10/06 13:29:55  joergr
 * Corrected creation of PrintBitmap pixel data: VOI windows should be applied
 * before clipping to avoid that the region outside the image (border) is also
 * windowed (this requires a new method in dcmimgle to create a DicomImage
 * with the grayscale transformations already applied).
 *
 * Revision 1.6  1999/09/17 12:22:57  joergr
 * Added/changed/completed DOC++ style comments in the header files.
 *
 * Revision 1.5  1999/08/25 16:41:52  joergr
 * Added new feature: Allow clipping region to be outside the image
 * (overlapping).
 *
 * Revision 1.4  1999/03/24 17:20:06  joergr
 * Added/Modified comments and formatting.
 *
 * Revision 1.3  1999/01/20 15:03:20  joergr
 * Added new output method to fill external memory buffer with rendered pixel
 * data.
 *
 * Revision 1.2  1998/12/16 16:32:02  joergr
 * Added explanation string to LUT class (retrieved from dataset).
 *
 * Revision 1.1  1998/11/27 15:12:18  joergr
 * Added copyright message.
 * Added methods and constructors for flipping and rotating, changed for
 * scaling and clipping.
 *
 * Revision 1.2  1998/05/11 14:53:19  joergr
 * Added CVS/RCS header to each file.
 *
 *
 */