gen_image3gen_image3GenImage3GenImage3 (Operator)

Name

gen_image3gen_image3GenImage3GenImage3 — Create an image from three pointers to the pixels (red/green/blue).

Signature

Description

The operator gen_image3gen_image3GenImage3GenImage3GenImage3 creates a three-channel image of the size WidthWidthWidthWidthwidth * HeightHeightHeightHeightheight. The pixels in PixelPointerRedPixelPointerRedPixelPointerRedPixelPointerRedpixelPointerRed, PixelPointerGreenPixelPointerGreenPixelPointerGreenPixelPointerGreenpixelPointerGreen and PixelPointerBluePixelPointerBluePixelPointerBluePixelPointerBluepixelPointerBlue are stored line-sequentially. The type of the given pixels (PixelPointerRedPixelPointerRedPixelPointerRedPixelPointerRedpixelPointerRed etc.) must correspond to TypeTypeTypeTypetype (see gen_image_constgen_image_constGenImageConstGenImageConstGenImageConst for a more detailed description of the pixel types). The storage for the new image is newly created by HALCON. Thus, it can be released after the call. Note that how to pass a pointer value depends on the used operator signature and programming environment. Make sure to pass the actual memory address where the image data is stored, not the address of a pointer variable. Care must be taken not to truncate 64-bit pointers on 64-bit architectures.

Execution Information

• Multithreading type: reentrant (runs in parallel with non-exclusive operators).
• Multithreading scope: global (may be called from any thread).
• Processed without parallelization.

Parameters

Example (C)

void NewRGBImage(Hobject *new)
{
  unsigned char  red[768*525];
  unsigned char  green[768*525];
  unsigned char  blue[768*525];
  int            r,c;
  for (r=0; r<525; r++)
    for (c=0; c<768; c++)
    {
      red[r*768+c]   = c % 255;
      green[r*768+c] = (767 - c) % 255;
      blue[r*768+c]  = r % 255;
    }
    gen_image3(new,"byte",768,525,(Hlong)red,(long)green,(long)blue);
}

main()
{
  Hobject  rgb;
  open_window(0,0,768,525,0,"","",&WindowHandle);
  NewRGBImage(&rgb);
  disp_color(rgb,WindowHandle);
}

Result

If the parameter values are correct, the operator gen_image3gen_image3GenImage3GenImage3GenImage3 returns the value 2 (H_MSG_TRUE). Otherwise an exception is raised.

Possible Predecessors

gen_image_constgen_image_constGenImageConstGenImageConstGenImageConst, get_image_pointer1get_image_pointer1GetImagePointer1GetImagePointer1GetImagePointer1

Possible Successors

disp_colordisp_colorDispColorDispColorDispColor

Alternatives

gen_image1gen_image1GenImage1GenImage1GenImage1, compose3compose3Compose3Compose3Compose3, gen_image_constgen_image_constGenImageConstGenImageConstGenImageConst

See also

reduce_domainreduce_domainReduceDomainReduceDomainReduceDomain, paint_graypaint_grayPaintGrayPaintGrayPaintGray, paint_regionpaint_regionPaintRegionPaintRegionPaintRegion, set_grayvalset_grayvalSetGrayvalSetGrayvalSetGrayval, get_image_pointer1get_image_pointer1GetImagePointer1GetImagePointer1GetImagePointer1, decompose3decompose3Decompose3Decompose3Decompose3

Module

Foundation