Halcon C#开图，调整大小、转灰阶

jasonme168 · 发表于 2021-4-10 22:16:25

在此获得许多帮助，学后作一点回餽，第一次发文，如有违规请再指正。
Halcon C#开图，调整大小、转灰阶
调整大小功能没有很完整，请大神再指导修正

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using HalconDotNet;//自行添加引用
namespace HalconCsExample
{
public partial class Form1 : Form
{
private static HWindow hwindow; //全局视窗变数
HDevelopExport HD = new HDevelopExport();
string ImagePath;
public Form1()
{
InitializeComponent();
hwindow = hWindowControl2.HalconWindow;//初始化视窗变量
this.btnImagePro.Enabled = false;
}
private void Form1_Load(object sender, EventArgs e)
{
}
//开启图档
private void button1_Click(object sender, EventArgs e)
{
openFileDialog1.Filter = "JPEG文件|*.jpg*|BMP文件|*.bmp*|TIFF文件|*.tiff*";
openFileDialog1.RestoreDirectory = true;
openFileDialog1.FilterIndex = 1;
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
ImagePath = openFileDialog1.FileName;
HD.ReadImage(hWindowControl2.HalconWindow, ImagePath);
this.btnImagePro.Enabled = true;
}
}
//彩色图转灰阶处理
private void button2_Click(object sender, EventArgs e)
{
HD.ImagePro();
this.btnImagePro.Enabled = false;
}
//调整影像大小
private void button3_Click(object sender, EventArgs e)
{
#region 初始化变量
// Local iconic variables
HObject ho_Image;
// Local control variables
HTuple hv_Width = new HTuple(), hv_Height = new HTuple();
// Initialize local and output iconic variables
HOperatorSet.GenEmptyObj(out ho_Image);
ho_Image.Dispose();
HOperatorSet.ReadImage(out ho_Image, ImagePath);
hv_Width.Dispose(); hv_Height.Dispose();
#endregion
#region 缩放图像，适应窗口
bool needResizeImage = true;
//获取图像大小及纵横比
HOperatorSet.GetImageSize(ho_Image, out hv_Width, out hv_Height);
int im_width = int.Parse(hv_Width.ToString());
int im_height = int.Parse(hv_Height.ToString());
double im_AspectRatio = (double)(im_width) / (double)(im_height);
//获取窗口大小及纵横比
int w_width = hWindowControl2.Size.Width;
int w_height = hWindowControl2.Size.Height;
double w_AspectRatio = (double)(w_width) / (double)(w_height);
HOperatorSet.SetSystem("int_zooming", "false");//图像缩放之前最好将此参数设置为false.
HTuple para = new HTuple("constant");
HObject ho_zoomImage;
HOperatorSet.GenEmptyObj(out ho_zoomImage);
ho_zoomImage.Dispose();
if (w_width < im_width && im_AspectRatio > w_AspectRatio)
{
//超宽图像
HOperatorSet.ZoomImageSize(ho_Image, out ho_zoomImage, w_width, w_width / im_AspectRatio, para);
}
else if (w_height < im_height && im_AspectRatio < w_AspectRatio)
{
//超高图像
HOperatorSet.ZoomImageSize(ho_Image, out ho_zoomImage, w_height * im_AspectRatio, w_height, para);
}
else
{
needResizeImage = false;
}
#endregion
#region 显示图像
hwindow.SetPart(0, 0, -2, -2);
if (needResizeImage)
{
hwindow.DispObj(ho_zoomImage);
}
else
{
hwindow.DispObj(ho_Image);
}
#endregion
ho_Image.Dispose();
ho_zoomImage.Dispose();
hv_Width.Dispose();
hv_Height.Dispose();
}
}
public partial class HDevelopExport
{
public HTuple hv_ExpDefaultWinHandle;
// 局部标志性变量
HObject ho_Image, ho_GrayImage;
public void InitHalcon()
{
// HDevelop中使用的默认设置
HOperatorSet.SetSystem("do_low_error", "false");
}
public void ReadImage(HTuple Window,string path)
{
hv_ExpDefaultWinHandle = Window;
// 初始化局部和输出图标变量
HOperatorSet.GenEmptyObj(out ho_Image);
HOperatorSet.GenEmptyObj(out ho_GrayImage);
//读取图片
//dev_close_window(...);
ho_Image.Dispose();
HOperatorSet.ReadImage(out ho_Image, path);
//dev_open_window(...);
HOperatorSet.DispObj(ho_Image, hv_ExpDefaultWinHandle);
}
//灰阶处理
public void ImagePro()
{
ho_GrayImage.Dispose();
HOperatorSet.Rgb1ToGray(ho_Image, out ho_GrayImage);
HOperatorSet.DispObj(ho_GrayImage, hv_ExpDefaultWinHandle);
ho_Image.Dispose();
ho_GrayImage.Dispose();
}
//
//
}
}

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Halcon C#开图，调整大小、转灰阶

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