■ Bitmap 클래스를 사용해 이미지 비트 단위 블렌딩하는 방법을 보여준다.
▶ BitwiseBlendType.cs
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 |
namespace TestProject { public enum BitwiseBlendType { /// <summary> /// NONE /// </summary> NONE, /// <summary> /// OR /// </summary> OR, /// <summary> /// AND /// </summary> AND, /// <summary> /// XOR /// </summary> XOR } } |
▶ BitmapHelper.cs
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 |
using System.Drawing; using System.Drawing.Drawing2D; using System.Drawing.Imaging; using System.Runtime.InteropServices; namespace TestProject { /// <summary> /// 비트맵 헬퍼 /// </summary> public static class BitmapHelper { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 비트맵 복사하기 - CopyBitmap(sourceBitmap, targetWidth) /// <summary> /// 비트맵 복사하기 /// </summary> /// <param name="sourceBitmap">소스 비트맵</param> /// <param name="targetWidth">타겟 너비</param> /// <returns>비트맵</returns> public static Bitmap CopyBitmap(Bitmap sourceBitmap, int targetWidth) { float ratio = 1.0f; int maximumSize = sourceBitmap.Width > sourceBitmap.Height ? sourceBitmap.Width : sourceBitmap.Height; ratio = (float)maximumSize / (float)targetWidth; Bitmap targetBitmap = (sourceBitmap.Width > sourceBitmap.Height ? new Bitmap(targetWidth, (int)(sourceBitmap.Height / ratio)) : new Bitmap((int)(sourceBitmap.Width / ratio), targetWidth)); using(Graphics targetGraphics = Graphics.FromImage(targetBitmap)) { targetGraphics.CompositingQuality = CompositingQuality.HighQuality; targetGraphics.InterpolationMode = InterpolationMode.HighQualityBicubic; targetGraphics.PixelOffsetMode = PixelOffsetMode.HighQuality; targetGraphics.DrawImage ( sourceBitmap, new Rectangle(0, 0, targetBitmap.Width, targetBitmap.Height), new Rectangle(0, 0, sourceBitmap.Width, sourceBitmap.Height), GraphicsUnit.Pixel ); targetGraphics.Flush(); } return targetBitmap; } #endregion #region 비트맵 블렌딩하기 - BelndBitmap(sourceBitmap1, sourceBitmap2, blueBlendType, greenBlendType, redBlendType) /// <summary> /// 비트맵 블렌딩하기 /// </summary> /// <param name="sourceBitmap1">소스 비트맵 1</param> /// <param name="sourceBitmap2">소스 비트맵 2</param> /// <param name="blueBlendType">청색 블렌딩 타입</param> /// <param name="greenBlendType">녹색 블렌딩 타입</param> /// <param name="redBlendType">적색 블렌딩 타입</param> /// <returns>비트맵</returns> public static Bitmap BelndBitmap ( Bitmap sourceBitmap1, Bitmap sourceBitmap2, BitwiseBlendType blueBlendType, BitwiseBlendType greenBlendType, BitwiseBlendType redBlendType ) { BitmapData sourceBitmapData1 = sourceBitmap1.LockBits ( new Rectangle(0, 0, sourceBitmap1.Width, sourceBitmap1.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb ); byte[] sourceByteArray1 = new byte[sourceBitmapData1.Stride * sourceBitmapData1.Height]; Marshal.Copy(sourceBitmapData1.Scan0, sourceByteArray1, 0, sourceByteArray1.Length); sourceBitmap1.UnlockBits(sourceBitmapData1); BitmapData sourceBitmapData2 = sourceBitmap2.LockBits ( new Rectangle(0, 0, sourceBitmap2.Width, sourceBitmap2.Height), ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb ); byte[] sourceByteArray2 = new byte[sourceBitmapData2.Stride * sourceBitmapData2.Height]; Marshal.Copy(sourceBitmapData2.Scan0, sourceByteArray2, 0, sourceByteArray2.Length); sourceBitmap2.UnlockBits(sourceBitmapData2); int blue = 0; int green = 0; int red = 0; for(int k = 0; (k + 4 < sourceByteArray1.Length) && (k + 4 < sourceByteArray2.Length); k += 4) { if(blueBlendType == BitwiseBlendType.AND) { blue = sourceByteArray1[k] & sourceByteArray2[k]; } else if(blueBlendType == BitwiseBlendType.OR) { blue = sourceByteArray1[k] | sourceByteArray2[k]; } else if(blueBlendType == BitwiseBlendType.XOR) { blue = sourceByteArray1[k] ^ sourceByteArray2[k]; } if(greenBlendType == BitwiseBlendType.AND) { green = sourceByteArray1[k+1] & sourceByteArray2[k+1]; } else if(greenBlendType == BitwiseBlendType.OR) { green = sourceByteArray1[k+1] | sourceByteArray2[k+1]; } else if(greenBlendType == BitwiseBlendType.XOR) { green = sourceByteArray1[k+1] ^ sourceByteArray2[k+1]; } if(redBlendType == BitwiseBlendType.AND) { red = sourceByteArray1[k+2] & sourceByteArray2[k+2]; } else if(redBlendType == BitwiseBlendType.OR) { red = sourceByteArray1[k+2] | sourceByteArray2[k+2]; } else if(redBlendType == BitwiseBlendType.XOR) { red = sourceByteArray1[k+2] ^ sourceByteArray2[k+2]; } if(blue < 0) { blue = 0; } else if(blue > 255) { blue = 255; } if(green < 0) { green = 0; } else if(green > 255) { green = 255; } if(red < 0) { red = 0; } else if(red > 255) { red = 255; } sourceByteArray1[k ] = (byte)blue; sourceByteArray1[k + 1] = (byte)green; sourceByteArray1[k + 2] = (byte)red; } Bitmap targetBitmap = new Bitmap(sourceBitmap1.Width, sourceBitmap1.Height); BitmapData targetBitmapData = targetBitmap.LockBits ( new Rectangle(0, 0, targetBitmap.Width, targetBitmap.Height), ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb ); Marshal.Copy(sourceByteArray1, 0, targetBitmapData.Scan0, sourceByteArray1.Length); targetBitmap.UnlockBits(targetBitmapData); return targetBitmap; } #endregion } } |
▶ MainForm.cs
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 |
using System; using System.Drawing; using System.Drawing.Imaging; using System.IO; using System.Windows.Forms; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 소스 비트맵 1 /// </summary> private Bitmap sourceBitmap1 = null; /// <summary> /// 소스 비트맵 2 /// </summary> private Bitmap sourceBitmap2 = null; /// <summary> /// 타겟 비트맵 /// </summary> private Bitmap targetBitmap = null; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); this.blueBlendTypeComboBox.Items.Add(BitwiseBlendType.NONE); this.blueBlendTypeComboBox.Items.Add(BitwiseBlendType.AND ); this.blueBlendTypeComboBox.Items.Add(BitwiseBlendType.OR ); this.blueBlendTypeComboBox.Items.Add(BitwiseBlendType.XOR ); this.blueBlendTypeComboBox.SelectedIndex = 0; this.greenBlendTypeComboBox.Items.Add(BitwiseBlendType.NONE); this.greenBlendTypeComboBox.Items.Add(BitwiseBlendType.AND ); this.greenBlendTypeComboBox.Items.Add(BitwiseBlendType.OR ); this.greenBlendTypeComboBox.Items.Add(BitwiseBlendType.XOR ); this.greenBlendTypeComboBox.SelectedIndex = 0; this.redBlendTypeComboBox.Items.Add(BitwiseBlendType.NONE); this.redBlendTypeComboBox.Items.Add(BitwiseBlendType.AND ); this.redBlendTypeComboBox.Items.Add(BitwiseBlendType.OR ); this.redBlendTypeComboBox.Items.Add(BitwiseBlendType.XOR ); this.redBlendTypeComboBox.SelectedIndex = 0; this.loadSourceImage1Button.Click += loadSourceImageButton_Click; this.loadSourceImage2Button.Click += loadSourceImageButton_Click; this.blueBlendTypeComboBox.SelectedIndexChanged += blendTypeComboBox_SelectedIndexChanged; this.greenBlendTypeComboBox.SelectedIndexChanged += blendTypeComboBox_SelectedIndexChanged; this.redBlendTypeComboBox.SelectedIndexChanged += blendTypeComboBox_SelectedIndexChanged; this.saveImageButton.Click += saveImageButton_Click; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 소스 이미지 로드 버튼 클릭시 처리하기 - loadSourceImageButton_Click(sender, e) /// <summary> /// 소스 이미지 로드 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void loadSourceImageButton_Click(object sender, EventArgs e) { OpenFileDialog openFileDialog = new OpenFileDialog(); openFileDialog.Title = "이미지 파일 로드"; openFileDialog.Filter = "PNG 파일(*.png)|*.png|JPEG 파일(*.jpg)|*.jpg|비트맵 파일(*.bmp)|*.bmp"; if(openFileDialog.ShowDialog() == DialogResult.OK) { if(sender == this.loadSourceImage1Button) { StreamReader streamReader = new StreamReader(openFileDialog.FileName); this.sourceBitmap1 = Bitmap.FromStream(streamReader.BaseStream) as Bitmap; streamReader.Close(); this.sourceImage1PictureBox.Image = BitmapHelper.CopyBitmap(this.sourceBitmap1, this.targetImagePictureBox.Width); } else if(sender == this.loadSourceImage2Button) { StreamReader streamReader = new StreamReader(openFileDialog.FileName); this.sourceBitmap2 = Bitmap.FromStream(streamReader.BaseStream) as Bitmap; streamReader.Close(); this.sourceImage2PictureBox.Image = BitmapHelper.CopyBitmap(this.sourceBitmap2, this.targetImagePictureBox.Width); } ApplyFilter(true); } } #endregion #region 블렌딩 타입 콤보 박스 선택 인덱스 변경시 처리하기 - blendTypeComboBox_SelectedIndexChanged(sender, e) /// <summary> /// 블렌딩 타입 콤보 박스 선택 인덱스 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void blendTypeComboBox_SelectedIndexChanged(object sender, EventArgs e) { ApplyFilter(true); } #endregion #region 이미지 저장 버튼 클릭시 처리하기 - saveImageButton_Click(sender, e) /// <summary> /// 이미지 저장 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void saveImageButton_Click(object sender, EventArgs e) { ApplyFilter(false); if(this.targetBitmap != null) { SaveFileDialog saveFileDialog = new SaveFileDialog(); saveFileDialog.Title = "이미지 파일 저장"; saveFileDialog.Filter = "PNG 파일(*.png)|*.png|JPEG 파일(*.jpg)|*.jpg|비트맵 파일(*.bmp)|*.bmp"; if(saveFileDialog.ShowDialog() == DialogResult.OK) { string fileExtension = Path.GetExtension(saveFileDialog.FileName).ToUpper(); ImageFormat imageFormat = ImageFormat.Png; if(fileExtension == "BMP") { imageFormat = ImageFormat.Bmp; } else if(fileExtension == "JPG") { imageFormat = ImageFormat.Jpeg; } StreamWriter streamWriter = new StreamWriter(saveFileDialog.FileName, false); targetBitmap.Save(streamWriter.BaseStream, imageFormat); streamWriter.Flush(); streamWriter.Close(); targetBitmap = null; } } } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 필터 적용하기 - ApplyFilter(preview) /// <summary> /// 필터 적용하기 /// </summary> /// <param name="preview">미리보기 여부</param> private void ApplyFilter(bool preview) { if(this.sourceBitmap1 == null || this.sourceBitmap2 == null || this.sourceImage2PictureBox.Image == null || this.sourceImage1PictureBox.Image == null) { return; } if(preview == true) { this.targetImagePictureBox.Image = BitmapHelper.BelndBitmap ( this.sourceImage1PictureBox.Image as Bitmap, this.sourceImage2PictureBox.Image as Bitmap, (BitwiseBlendType)this.blueBlendTypeComboBox.SelectedItem, (BitwiseBlendType)this.greenBlendTypeComboBox.SelectedItem, (BitwiseBlendType)this.redBlendTypeComboBox.SelectedItem ); } else { this.targetBitmap = BitmapHelper.BelndBitmap ( this.sourceBitmap1, this.sourceBitmap2, (BitwiseBlendType)blueBlendTypeComboBox.SelectedItem, (BitwiseBlendType)greenBlendTypeComboBox.SelectedItem, (BitwiseBlendType)redBlendTypeComboBox.SelectedItem ); } } #endregion } } |
