( image: JimpClass, kernel: number[][], x: number, y: number, )
| 59 | type PixelateOptions = z.infer<typeof PixelateOptionsSchema>; |
| 60 | |
| 61 | function applyKernel( |
| 62 | image: JimpClass, |
| 63 | kernel: number[][], |
| 64 | x: number, |
| 65 | y: number, |
| 66 | ) { |
| 67 | const value = [0, 0, 0, 0] as [number, number, number, number]; |
| 68 | const size = (kernel.length - 1) / 2; |
| 69 | |
| 70 | for (let kx = 0; kx < kernel.length; kx += 1) { |
| 71 | for (let ky = 0; ky < kernel[kx]!.length; ky += 1) { |
| 72 | const idx = image.getPixelIndex(x + kx - size, y + ky - size); |
| 73 | |
| 74 | value[0] += image.bitmap.data[idx]! * kernel[kx]![ky]!; |
| 75 | value[1] += image.bitmap.data[idx + 1]! * kernel[kx]![ky]!; |
| 76 | value[2] += image.bitmap.data[idx + 2]! * kernel[kx]![ky]!; |
| 77 | value[3] += image.bitmap.data[idx + 3]! * kernel[kx]![ky]!; |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | return value; |
| 82 | } |
| 83 | |
| 84 | function mix(clr: RGBColor, clr2: RGBColor, p = 50) { |
| 85 | return { |
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