| 206 | } |
| 207 | |
| 208 | displayOriginalImage(img) { |
| 209 | const originalPreview = document.getElementById('originalPreview'); |
| 210 | if (originalPreview) { |
| 211 | originalPreview.src = img.src; |
| 212 | |
| 213 | // 确保图片样式与处理结果一致 |
| 214 | originalPreview.style.maxWidth = '100%'; |
| 215 | originalPreview.style.maxHeight = '100%'; |
| 216 | originalPreview.style.imageRendering = 'pixelated'; |
| 217 | originalPreview.style.objectFit = 'contain'; |
| 218 | originalPreview.style.width = 'auto'; |
| 219 | originalPreview.style.height = 'auto'; |
| 220 | } |
| 221 | } |
| 222 | |
| 223 | /** |
| 224 | * 自动检测像素块大小并给出建议 |