Fixed the slowest drivers windows and cleaned some of the code

This commit is contained in:
2023-05-30 09:38:51 +02:00
parent 6f36c829c2
commit 067e7233a0
16 changed files with 221 additions and 70 deletions
+25 -3
View File
@@ -1,8 +1,8 @@
/// Author : Maxime Rohmer
/// Date : 08/05/2023
/// Date : 30/05/2023
/// File : OcrImage.cs
/// Brief : Class containing all the methods used to enhance images for OCR
/// Version : 0.1
/// Version : Alpha 1.0
using System;
using System.Collections.Generic;
@@ -44,6 +44,7 @@ namespace Test_Merge
public Bitmap Enhance(int id,WindowType type = WindowType.Text)
{
Bitmap outputBitmap = (Bitmap)InputBitmap.Clone();
//Note : If you plan to activate all the comments that I used to debug the OCR I would advise to make sure that the debug folder exists
switch (type)
{
case WindowType.Gap:
@@ -143,16 +144,23 @@ namespace Test_Merge
return inputBitmap;
}
/// <summary>
/// Method that uses the Sobel Edge detection to outline the edges of the characters to help with the OCR
/// </summary>
/// <param name="grayscaleImage">The image with the sobel edge detection used</param>
/// <returns></returns>
private Bitmap SobelEdgeDetection(Bitmap grayscaleImage)
{
// Create a new bitmap for the edges
Bitmap edgesImage = new Bitmap(grayscaleImage.Width, grayscaleImage.Height);
// Define the Sobel operators
// Its just a matrix that we will use on the all image
int[,] sobelX = { { -1, 0, 1 }, { -2, 0, 2 }, { -1, 0, 1 } };
int[,] sobelY = { { -1, -2, -1 }, { 0, 0, 0 }, { 1, 2, 1 } };
// Apply the Sobel operators and normalize the gradients
// NOTE: I dont know how easy or hard it would be to make this paralel but it could be a good idea to do so if possible.
for (int y = 1; y < grayscaleImage.Height - 1; y++)
{
for (int x = 1; x < grayscaleImage.Width - 1; x++)
@@ -162,6 +170,7 @@ namespace Test_Merge
int gradient = (int)Math.Sqrt(gradientX * gradientX + gradientY * gradientY);
// Normalize the gradient value
// In some rare cases the value can exceed 255 so we limit it with the Math.Min method
gradient = Math.Min(255, Math.Max(0, gradient));
edgesImage.SetPixel(x, y, Color.FromArgb(gradient, gradient, gradient));
@@ -170,7 +179,14 @@ namespace Test_Merge
return edgesImage;
}
/// <summary>
/// Method that's here to be used by the sobel edge detection method (Chat GPT has been used for parts of this method)
/// </summary>
/// <param name="grayscaleImage">The input image with the grayscale processing already done</param>
/// <param name="sobelOperator">The matrix to apply</param>
/// <param name="x"></param>
/// <param name="y"></param>
/// <returns>Returns the processed gradient</returns>
private int CalculateGradient(Bitmap grayscaleImage, int[,] sobelOperator, int x, int y)
{
int gradient = 0;
@@ -186,6 +202,11 @@ namespace Test_Merge
return gradient;
}
/// <summary>
/// Method that is used to whiten an image. Ignore the funny name. Its used to prevent colored text to trouble the OCR when it uses grayscaling
/// </summary>
/// <param name="inputBitmap">The bitmap to vanish</param>
/// <returns></returns>
public static Bitmap VanishOxyAction(Bitmap inputBitmap)
{
Rectangle rect = new Rectangle(0, 0, inputBitmap.Width, inputBitmap.Height);
@@ -194,6 +215,7 @@ namespace Test_Merge
unsafe
{
//Note : MAKE THIS PARALELL OMG WY DID I LEFT IT LIKE THAT
byte* ptr = (byte*)bmpData.Scan0.ToPointer();
for (int y = 0; y < inputBitmap.Height; y++)
{