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//----------------------------------------------------------------------------
// Copyright (C) 2004-2024 by EMGU Corporation. All rights reserved.
//----------------------------------------------------------------------------
using System;using System.Collections.Generic;using System.Runtime.InteropServices;using System.Text;using Emgu.CV;using Emgu.CV.Cuda;using Emgu.CV.CvEnum;using Emgu.CV.Dnn;using Emgu.CV.ML;//using Backend = Emgu.CV.Dnn.Backend;
namespace MauiDemoApp{ public class AboutPage : ContentPage { public AboutPage() {#if DEBUG
CvInvoke.LogLevel = LogLevel.Verbose; //LogLevel.Debug;
#endif
String lineBreak = "<br/>";
String openclTxt = String.Format("Has OpenCL: {0}", CvInvoke.HaveOpenCL); if (CvInvoke.HaveOpenCL) { openclTxt = String.Format("{0}{1}Use OpenCL: {2}{1}<textarea rows=\"5\">{3}</textarea>{1}", openclTxt, lineBreak, CvInvoke.UseOpenCL, CvInvoke.OclGetPlatformsSummary()); }
String cudaTxt = String.Format("Has CUDA: {0}", CudaInvoke.HasCuda); if (CudaInvoke.HasCuda) { cudaTxt = String.Format("{0}{1}<textarea rows=\"5\">{2}</textarea>{1}", cudaTxt, lineBreak, CudaInvoke.GetCudaDevicesSummary()); }
var openCVConfigDict = CvInvoke.ConfigDict; bool haveDNN = (openCVConfigDict["HAVE_OPENCV_DNN"] != 0); String dnnText; if (haveDNN) { var dnnBackends = DnnInvoke.AvailableBackends; List<String> dnnBackendsText = new List<string>(); foreach (var dnnBackend in dnnBackends) { dnnBackendsText.Add(String.Format("<p>{0} - {1}</p>", dnnBackend.Backend, dnnBackend.Target)); }
dnnText = String.Join("", dnnBackendsText.ToArray()); } else { dnnText = "DNN is not available"; }
bool haveVideoio = (openCVConfigDict["HAVE_OPENCV_VIDEOIO"] != 0);
String osDescription = Emgu.Util.Platform.OperationSystem.ToString();
String parallelText; List<String> parallelBackendText = new List<string>(); foreach (var parallelBackend in CvInvoke.AvailableParallelBackends) { parallelBackendText.Add(String.Format("<p>{0}</p>", parallelBackend)); }
parallelText = String.Join("", parallelBackendText.ToArray());
String tesseractText; String tesseractVersion = String.Empty; bool haveTesseract = (openCVConfigDict["HAVE_EMGUCV_TESSERACT"] != 0);
if (haveTesseract) { tesseractVersion = Emgu.CV.OCR.Tesseract.VersionString; if (tesseractVersion.Length == 0) haveTesseract = false; }
if (haveTesseract) { tesseractText = String.Format("Version: {0}", tesseractVersion); } else { tesseractText = "Tesseract OCR is not available"; }
Content = new Microsoft.Maui.Controls.ScrollView() { Content = new WebView() { //WidthRequest = 1000,
//HeightRequest = 1000,
MinimumWidthRequest = 100, MinimumHeightRequest = 100, Source = new HtmlWebViewSource() { Html = @"<html>
<head> <style>body { background-color: #EEEEEE; }</style> <style type=""text/css""> textarea { width: 100%; margin: 0; padding: 0; border - width: 0; } </style> </head> <body> <H2> Emgu CV for MAUI</H2> <a href=http://www.emgu.com>Visit our website</a> <br/><br/>
<a href=mailto:support@emgu.com>Email Support</a> <br/><br/> <H4> OpenCL Info </H4> " + openclTxt + @" <H4> Cuda Info </H4> " + cudaTxt + @" <H4> OS: </H4> " + osDescription + @" <H4> Available Parallel Backends: </H4> " + parallelText + @" <H4> Dnn Backends: </H4> " + dnnText + @" <H4> Capture Backends (VideoCapture from device): </H4> " + (haveVideoio ? GetBackendInfo(CvInvoke.Backends) : "Videoio backend not supported.") + @" <H4> Stream Backends (VideoCapture from file/Stream): </H4> " + (haveVideoio ? GetBackendInfo(CvInvoke.StreamBackends) : "Videoio backend not supported.") + @" <H4> VideoWriter Backends: </H4> " + (haveVideoio ? GetBackendInfo(CvInvoke.WriterBackends) : "Videoio backend not supported.") + @" <H4> Tesseract OCR: </H4> " + tesseractText + @" <H4> Build Info </H4> <textarea rows=""30"">"
+ CvInvoke.BuildInformation + @"
</textarea> <H4> RuntimeInformation.OSArchitecture: </H4> " + RuntimeInformation.OSArchitecture + @" <H4> RuntimeInformation.OSDescription: </H4> " + RuntimeInformation.OSDescription + @" <H4> RuntimeInformation.FrameworkDescription: </H4> " + RuntimeInformation.FrameworkDescription + @" <H4> RuntimeInformation.ProcessArchitecture: </H4> " + RuntimeInformation.ProcessArchitecture + @" <H4> RuntimeInformation.RuntimeIdentifier: </H4> " + RuntimeInformation.RuntimeIdentifier + @" <H4> Microsoft.Maui.Devices.DeviceInfo.Current.Model: </H4> " + Microsoft.Maui.Devices.DeviceInfo.Current.Model + @" <H4> Microsoft.Maui.Devices.DeviceInfo.Current.Manufacturer: </H4> " + Microsoft.Maui.Devices.DeviceInfo.Current.Manufacturer + @" <H4> Microsoft.Maui.Devices.DeviceInfo.Current.Name: </H4> " + Microsoft.Maui.Devices.DeviceInfo.Current.Name + @" <H4> Microsoft.Maui.Devices.DeviceInfo.Current.VersionString: </H4> " + Microsoft.Maui.Devices.DeviceInfo.Current.VersionString + @" <H4> Microsoft.Maui.Devices.DeviceInfo.Current.Idiom: </H4> " + Microsoft.Maui.Devices.DeviceInfo.Current.Idiom + @" <H4> Microsoft.Maui.Devices.DeviceInfo.Current.Platform: </H4> " + Microsoft.Maui.Devices.DeviceInfo.Current.Platform+ @" <H4> Microsoft.Maui.Devices.DeviceInfo.Current.DeviceType: </H4> " + Microsoft.Maui.Devices.DeviceInfo.Current.DeviceType+ @" </body> </html>"
}
} }; Content.BackgroundColor = Color.FromRgb(1.0, 0.0, 0.0); }
private static String GetBackendInfo(Emgu.CV.Backend[] backends) { List<String> backendsText = new List<string>(); foreach (var backend in backends) { backendsText.Add(String.Format("<p>{0} - {1}</p>", backend.ID, backend.Name)); }
return String.Join("", backendsText.ToArray()); } }}
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