gen_image3gen_image3GenImage3GenImage3gen_image3 (算子)

名称

gen_image3gen_image3GenImage3GenImage3gen_image3 — 从三个指向像素（红/绿/蓝）的指针创建图像。

签名

描述

算子 gen_image3gen_image3GenImage3GenImage3GenImage3gen_image3 creates a three-channel image of the size WidthWidthWidthWidthwidthwidth * HeightHeightHeightHeightheightheight. The pixels in PixelPointerRedPixelPointerRedPixelPointerRedPixelPointerRedpixelPointerRedpixel_pointer_red, PixelPointerGreenPixelPointerGreenPixelPointerGreenPixelPointerGreenpixelPointerGreenpixel_pointer_green and PixelPointerBluePixelPointerBluePixelPointerBluePixelPointerBluepixelPointerBluepixel_pointer_blue are stored line-sequentially. The type of the given pixels (PixelPointerRedPixelPointerRedPixelPointerRedPixelPointerRedpixelPointerRedpixel_pointer_red etc.) must correspond to TypeTypeTypeTypetypetype (see gen_image_constgen_image_constGenImageConstGenImageConstGenImageConstgen_image_const 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.

注意

gen_image3gen_image3GenImage3GenImage3GenImage3gen_image3 does not check whether the pixels in PixelPointerRedPixelPointerRedPixelPointerRedPixelPointerRedpixelPointerRedpixel_pointer_red,PixelPointerGreenPixelPointerGreenPixelPointerGreenPixelPointerGreenpixelPointerGreenpixel_pointer_green, and PixelPointerBluePixelPointerBluePixelPointerBluePixelPointerBluepixelPointerBluepixel_pointer_blue are valid or not. Thus, it must be ensured by the user that they are valid. Otherwise, the program may crash!

执行信息

• 多线程类型：可重入（与非独占算子并行运行）。
• 多线程作用域：全局（可从任何线程调用）。
• 未采用并行化处理。

参数

示例（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);
}

结果

如果参数值正确，算子 gen_image3gen_image3GenImage3GenImage3GenImage3gen_image3 返回值 2 ( H_MSG_TRUE )。否则将抛出异常。

可能的前趋

gen_image_constgen_image_constGenImageConstGenImageConstGenImageConstgen_image_const, get_image_pointer1get_image_pointer1GetImagePointer1GetImagePointer1GetImagePointer1get_image_pointer1

可能的后继

disp_colordisp_colorDispColorDispColorDispColordisp_color

替代

gen_image1gen_image1GenImage1GenImage1GenImage1gen_image1, compose3compose3Compose3Compose3Compose3compose3, gen_image_constgen_image_constGenImageConstGenImageConstGenImageConstgen_image_const

另见

reduce_domainreduce_domainReduceDomainReduceDomainReduceDomainreduce_domain, paint_graypaint_grayPaintGrayPaintGrayPaintGraypaint_gray, paint_regionpaint_regionPaintRegionPaintRegionPaintRegionpaint_region, set_grayvalset_grayvalSetGrayvalSetGrayvalSetGrayvalset_grayval, get_image_pointer1get_image_pointer1GetImagePointer1GetImagePointer1GetImagePointer1get_image_pointer1, decompose3decompose3Decompose3Decompose3Decompose3decompose3

模块

基础

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