Esempio n. 1
0
        private async Task _GetText(Bitmap cropped)
        {
            if (!TesseractApi.Initialized)
            {
                await TesseractApi.Init("eng");
            }

            TesseractApi.SetRectangle(new Tesseract.Rectangle((int)(cropped.Width * 0.24), 10, (int)(cropped.Width * 0.35), (int)(cropped.Height * 0.065)));
            TesseractApi.SetWhitelist("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz");
            if (await TesseractApi.SetImage(File.OpenRead(Path.ChangeExtension(ImagePath, "card"))))
            {
                string s = TesseractApi.Text;

                if (Name == "" || Name == "NO TEXT DETECTED")
                {
                    if (s != "")
                    {
                        if (s != "" && s[0].ToString() == s[0].ToString().ToLower())
                        {
                            s = s.Substring(1, s.Length - 1);
                        }
                        TextInfo textInfo = new CultureInfo("en-US", false).TextInfo;
                        s = textInfo.ToTitleCase(s.ToLower());
                    }
                    else
                    {
                        s = "NO TEXT DETECTED";
                    }

                    Name = s;
                }
            }
        }
        public async void Sample1JpgRectangle()
        {
            await _api.Init("eng");

            using (var stream = LoadSample("sample1.jpg")) {
                _api.SetRectangle(new Rectangle(0, 0, 900, 100));
                var result = await _api.SetImage(stream);

                Assert.IsTrue(result);
                Assert.AreEqual("The quick brown fox\n\n", _api.Text);
                var data = _api.Results(PageIteratorLevel.Block).ToList();
                Assert.AreEqual(1, data.Count);
                Assert.AreEqual("The quick brown fox\n\n", data [0].Text);
                data = _api.Results(PageIteratorLevel.Paragraph).ToList();
                Assert.AreEqual(1, data.Count);
                Assert.AreEqual("The quick brown fox\n\n", data [0].Text);
            }
        }