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C# 作为WSQ的数字人物角色指纹捕获图像_C#_Fingerprint_Digital Persona Sdk - Fatal编程技术网

C# 作为WSQ的数字人物角色指纹捕获图像

C# 作为WSQ的数字人物角色指纹捕获图像,c#,fingerprint,digital-persona-sdk,C#,Fingerprint,Digital Persona Sdk,我正在使用数字角色指纹设备,需要以WSQ格式而不是Bmp格式捕获图像 使用C# 示例代码 private DPFP.Capture.SampleConversion SampleConversion; private Bitmap Image; public async void OnComplete(object Capture, string ReaderSerialNumber, DPFP.Sample Sample) { var imgName

我正在使用数字角色指纹设备,需要以
WSQ
格式而不是
Bmp
格式捕获图像
使用
C#

示例代码

private DPFP.Capture.SampleConversion SampleConversion;
private Bitmap Image;
public async void OnComplete(object Capture, string ReaderSerialNumber, DPFP.Sample Sample)
        {

            var imgName = string.Format("fingerprint{0}.bmp", DateTime.Now.Ticks);
            SampleConversion.ConvertToPicture(Sample, ref Image);
            Image.Save(imgName, System.Drawing.Imaging.ImageFormat.Bmp);
        }

我在C#中找到了一个库,它将
bmp
转换为
wsq
,但是
wsq
的结果不正确,
是否有任何解决方案可以直接从sdk返回捕获的
wsq
格式的图像

要准确实现我所需要的,我需要执行以下操作:

我用了两个图书馆

1-,和DLL的

这是一种调整大小的方法

public Bitmap resizeImage(int newWidth, int newHeight, Image imgPhoto)
        {
            int sourceWidth = imgPhoto.Width;
            int sourceHeight = imgPhoto.Height;

            //Consider vertical pics
            if (sourceWidth < sourceHeight)
            {
                int buff = newWidth;

                newWidth = newHeight;
                newHeight = buff;
            }

            int sourceX = 0, sourceY = 0, destX = 0, destY = 0;
            float nPercent = 0, nPercentW = 0, nPercentH = 0;

            nPercentW = ((float)newWidth / (float)sourceWidth);
            nPercentH = ((float)newHeight / (float)sourceHeight);
            if (nPercentH < nPercentW)
            {
                nPercent = nPercentH;
                destX = System.Convert.ToInt16((newWidth -
                          (sourceWidth * nPercent)) / 2);
            }
            else
            {
                nPercent = nPercentW;
                destY = System.Convert.ToInt16((newHeight -
                          (sourceHeight * nPercent)) / 2);
            }

            int destWidth = (int)(sourceWidth * nPercent);
            int destHeight = (int)(sourceHeight * nPercent);


            Bitmap bmPhoto = new Bitmap(newWidth, newHeight,
                          PixelFormat.Format24bppRgb);

            bmPhoto.SetResolution(imgPhoto.HorizontalResolution,
                         imgPhoto.VerticalResolution);

            Graphics grPhoto = Graphics.FromImage(bmPhoto);
            grPhoto.Clear(Color.Black);
            grPhoto.InterpolationMode =
                System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;

            grPhoto.DrawImage(imgPhoto,
                new Rectangle(destX, destY, destWidth, destHeight),
                new Rectangle(sourceX, sourceY, sourceWidth, sourceHeight),
                GraphicsUnit.Pixel);

            grPhoto.Dispose();
            imgPhoto.Dispose();
            return bmPhoto;
        }
公共位图大小图像(int-newWidth、int-newHeight、Image-imgPhoto)
{
int sourceWidth=imgPhoto.Width;
int sourceHeight=imgPhoto.Height;
//考虑垂直图片
if(sourceWidth
您找到解决方案了吗?是的,我使用了Delta.wsq查看我的答案,希望它能帮助您
public Bitmap resizeImage(int newWidth, int newHeight, Image imgPhoto)
        {
            int sourceWidth = imgPhoto.Width;
            int sourceHeight = imgPhoto.Height;

            //Consider vertical pics
            if (sourceWidth < sourceHeight)
            {
                int buff = newWidth;

                newWidth = newHeight;
                newHeight = buff;
            }

            int sourceX = 0, sourceY = 0, destX = 0, destY = 0;
            float nPercent = 0, nPercentW = 0, nPercentH = 0;

            nPercentW = ((float)newWidth / (float)sourceWidth);
            nPercentH = ((float)newHeight / (float)sourceHeight);
            if (nPercentH < nPercentW)
            {
                nPercent = nPercentH;
                destX = System.Convert.ToInt16((newWidth -
                          (sourceWidth * nPercent)) / 2);
            }
            else
            {
                nPercent = nPercentW;
                destY = System.Convert.ToInt16((newHeight -
                          (sourceHeight * nPercent)) / 2);
            }

            int destWidth = (int)(sourceWidth * nPercent);
            int destHeight = (int)(sourceHeight * nPercent);


            Bitmap bmPhoto = new Bitmap(newWidth, newHeight,
                          PixelFormat.Format24bppRgb);

            bmPhoto.SetResolution(imgPhoto.HorizontalResolution,
                         imgPhoto.VerticalResolution);

            Graphics grPhoto = Graphics.FromImage(bmPhoto);
            grPhoto.Clear(Color.Black);
            grPhoto.InterpolationMode =
                System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;

            grPhoto.DrawImage(imgPhoto,
                new Rectangle(destX, destY, destWidth, destHeight),
                new Rectangle(sourceX, sourceY, sourceWidth, sourceHeight),
                GraphicsUnit.Pixel);

            grPhoto.Dispose();
            imgPhoto.Dispose();
            return bmPhoto;
        }