C# 版本real类型TIF与16位PNG相互转换算法

最新推荐文章于 2025-04-15 11:08:24 发布

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最新推荐文章于 2025-04-15 11:08:24 发布 · 3.9k 阅读

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#图像处理 #几何学 #opencv

这段代码展示了在Halcon库基础上对图像处理的修改，主要改进包括：将最小值和delta值从一位扩展到两位表示，解决了高度值越界问题，并将放缩系数放大10000倍以提高精度。代码实现了tif到png的转换，过程中涉及编码信息的存储和解码时的读取，确保了图像数据的准确传输。

该版本在halcon基础上做了一些细微改动，主要是将最小值和delta值之前由一位表示改为由两位进行表示。不再用担心高度值的越界问题，同时将放缩系数放大10000倍，进一步保证了精度。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using HalconDotNet;

namespace Halcon_Test
{
    public static class HalconTest
    {
        /// <summary>
        /// 将tif转为png
        /// </summary>
        /// <param name="h0_image"></param>
        /// <param name="writepath"></param>
        public static void Tif2PNG(HObject ho_image,string writepath)
        {
            ///标志位数据
            HTuple hv_flagRows = null, hv_flagColumns = null, hv_flagValue = null;
            ///编码数据
            HTuple hv_codeRows = null, hv_codeColumns = null, hv_codeValue = null;
            HTuple hv_Z_MINisMINUS = null, hv_Z_MIN1 = null, hv_Z_MIN2 = null, hv_Z_Delta1 = null, hv_Z_Delta2 = null, hv_Z_SCALE = null, hv_X_OFFSET = null, hv_X_SCALE = null, hv_Y_OFFSET = null, hv_Y_SCALE = null;
            /// 中间变量
            HTuple hv_Width = null, hv_Height = null, hv_Z_MIN = null, hv_Z_MAX = null, hv_Z_Delta, hv_SCALE=null, hv_Rows=null, hv_Columns=null, hv_Grayval=null;
            ///图像中间变量
            HObject ho_Region, ho_ImageCleared, ho_ImageSub, ho_Image2, ho_OutImage, ho_Rectangle;
            HOperatorSet.GenEmptyObj(out ho_Region);
            HOperatorSet.GenEmptyObj(out ho_ImageCleared);
            HOperatorSet.GenEmptyObj(out ho_ImageSub);
            HOperatorSet.GenEmptyObj(out ho_Image2);
            HOperatorSet.GenEmptyObj(out ho_OutImage);
            HOperatorSet.GenEmptyObj(out ho_Rectangle);
            ///开始转换
            /// //图片的编码信息
            //检查最小值Z_MIN是否为负数
            hv_Z_MINisMINUS = 0;
            //用两个位置来保存Z_MIN和Z_Delta
            //Z_MIN=Z_MIN1+Z_MIN2/10000
            //Z_Delta=Z_Delta1+Z_Delta2/10000
            hv_Z_Delta1 = new HTuple();
            hv_Z_MIN1 = new HTuple();
            hv_Z_Delta2 = new HTuple();
            hv_Z_MIN2 = new HTuple();
            hv_Z_SCALE = 10000;
            hv_X_OFFSET = 0;
            hv_X_SCALE = 1;
            hv_Y_OFFSET = 0;
            hv_Y_SCALE = 1;
            HOperatorSet.GetImageSize(ho_image, out hv_Width, out hv_Height);
            //*************************************************
            //判断的三个标志位；标志位分别为于最后一行28、29、30处
            hv_flagRows = new HTuple();
            hv_flagRows = hv_flagRows.TupleConcat(hv_Height);
            hv_flagRows = hv_