From 0f308763718e50c45d70cb147b580e82243c0066 Mon Sep 17 00:00:00 2001 From: jingrow Date: Wed, 21 Jan 2026 15:14:14 +0800 Subject: [PATCH] feat(add-background): use light tint of dominant color as default background - Install colorthief library for color extraction - Extract dominant color from foreground subject after background removal - Convert dominant color to light pastel version (92% lightness, max 40% saturation) - Maintain same hue for harmonious color coordination - Fallback to white background if color extraction fails --- package-lock.json | 718 +++++++++++++++++- package.json | 1 + .../tools/add_background/add_background.vue | 72 +- 3 files changed, 777 insertions(+), 14 deletions(-) diff --git a/package-lock.json b/package-lock.json index a643c2a..d5bd4e1 100644 --- a/package-lock.json +++ b/package-lock.json @@ -57,6 +57,7 @@ "@vue-flow/minimap": "^1.0.0", "@vueuse/core": "^13.9.0", "axios": "^1.5.0", + "colorthief": "^2.6.0", "fabric": "^7.1.0", "jquery": "^3.7.0", 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"@img/sharp-linux-s390x": "0.33.5", + "@img/sharp-linux-x64": "0.33.5", + "@img/sharp-linuxmusl-arm64": "0.33.5", + "@img/sharp-linuxmusl-x64": "0.33.5", + "@img/sharp-wasm32": "0.33.5", + "@img/sharp-win32-ia32": "0.33.5", + "@img/sharp-win32-x64": "0.33.5" + } + }, + "node_modules/sharp/node_modules/detect-libc": { + "version": "2.1.2", + "resolved": "https://registry.npmjs.org/detect-libc/-/detect-libc-2.1.2.tgz", + "integrity": "sha512-Btj2BOOO83o3WyH59e8MgXsxEQVcarkUOpEYrubB0urwnN10yQ364rsiByU11nZlqWYZm05i/of7io4mzihBtQ==", + "license": "Apache-2.0", + "engines": { + "node": ">=8" + } + }, "node_modules/side-channel": { "version": "1.1.0", "resolved": "https://registry.npmjs.org/side-channel/-/side-channel-1.1.0.tgz", @@ -6579,6 +7223,21 @@ "simple-concat": "^1.0.0" } }, + "node_modules/simple-swizzle": { + "version": "0.2.4", + "resolved": "https://registry.npmjs.org/simple-swizzle/-/simple-swizzle-0.2.4.tgz", + "integrity": 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"type": "github", + "url": "https://github.com/sponsors/Borewit" + } + }, "node_modules/tough-cookie": { "version": "5.1.2", "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-5.1.2.tgz", @@ -6924,7 +7616,7 @@ "version": "2.8.1", "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz", "integrity": "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==", - "dev": true, + "devOptional": true, "license": "0BSD" }, "node_modules/tsx": { @@ -7431,6 +8123,12 @@ "dev": true, "license": "MIT" }, + "node_modules/uniq": { + "version": "1.0.1", + "resolved": "https://registry.npmjs.org/uniq/-/uniq-1.0.1.tgz", + "integrity": "sha512-Gw+zz50YNKPDKXs+9d+aKAjVwpjNwqzvNpLigIruT4HA9lMZNdMqs9x07kKHB/L9WRzqp4+DlTU5s4wG2esdoA==", + "license": "MIT" + }, "node_modules/unpipe": { "version": "1.0.0", "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz", diff --git a/package.json b/package.json index 4f75bb1..6c7a989 100644 --- a/package.json +++ b/package.json @@ -58,6 +58,7 @@ "@vue-flow/minimap": "^1.0.0", "@vueuse/core": "^13.9.0", "axios": "^1.5.0", + "colorthief": "^2.6.0", "fabric": "^7.1.0", "jquery": "^3.7.0", "monaco-editor": "^0.54.0", diff --git a/src/views/tools/add_background/add_background.vue b/src/views/tools/add_background/add_background.vue index 7b00df0..d1eb4fc 100644 --- a/src/views/tools/add_background/add_background.vue +++ b/src/views/tools/add_background/add_background.vue @@ -198,6 +198,7 @@ import { useAuthStore } from '@/shared/stores/auth' import { useSEO } from '@/shared/composables/useSEO' import { compressImageFile } from '@/shared/utils/imageResize' import { Canvas, FabricImage } from 'fabric' +import ColorThief from 'colorthief' const message = useMessage() const authStore = useAuthStore() @@ -230,6 +231,7 @@ const imageUrl = ref('') const backgroundColor = ref('#FFFFFF') const isColorValid = ref(true) let colorChangeDebounceTimer: ReturnType | null = null +const colorThief = new ColorThief() // Generate color palette based on HSL color space const colorPalette = computed(() => { @@ -454,9 +456,10 @@ const handleUrlSubmit = async () => { }) uploadedImage.value = compressedFile - uploadedImageUrl.value = URL.createObjectURL(compressedFile) + const imageUrl = URL.createObjectURL(compressedFile) + uploadedImageUrl.value = imageUrl - await initializeCanvas() + await extractDominantColorAndInitialize(imageUrl) } catch (error) { message.error(t('Image processing failed, please try again')) processing.value = false @@ -590,7 +593,7 @@ const processFile = async (file: File) => { const reader = new FileReader() reader.onload = async (e) => { uploadedImageUrl.value = e.target?.result as string - await initializeCanvas() + await extractDominantColorAndInitialize(uploadedImageUrl.value) } reader.readAsDataURL(removedBgImage) return @@ -609,7 +612,7 @@ const processFile = async (file: File) => { const reader = new FileReader() reader.onload = async (e) => { uploadedImageUrl.value = e.target?.result as string - await initializeCanvas() + await extractDominantColorAndInitialize(uploadedImageUrl.value) } reader.readAsDataURL(compressedFile) } catch (error) { @@ -934,6 +937,67 @@ const resetUpload = () => { } } +// Convert RGB to light pastel color based on the same hue +const rgbToLightPastel = (r: number, g: number, b: number): string => { + // Convert RGB to HSL + const rNorm = r / 255 + const gNorm = g / 255 + const bNorm = b / 255 + + const max = Math.max(rNorm, gNorm, bNorm) + const min = Math.min(rNorm, gNorm, bNorm) + let h = 0 + let s = 0 + const l = (max + min) / 2 + + if (max !== min) { + const d = max - min + s = l > 0.5 ? d / (2 - max - min) : d / (max + min) + switch (max) { + case rNorm: h = ((gNorm - bNorm) / d + (gNorm < bNorm ? 6 : 0)) / 6; break + case gNorm: h = ((bNorm - rNorm) / d + 2) / 6; break + case bNorm: h = ((rNorm - gNorm) / d + 4) / 6; break + } + } + + // Convert to light pastel: keep hue, reduce saturation to 25-35%, increase lightness to 90-95% + const pastelS = Math.min(s * 100, 40) // Cap saturation at 40% for pastel effect + const pastelL = 92 // High lightness for light background + + // Convert HSL back to RGB + return hslToHex(h * 360, pastelS, pastelL) +} + +// Extract dominant color from image using color-thief +const extractDominantColorAndInitialize = async (imageDataUrl: string) => { + try { + const img = new Image() + img.crossOrigin = 'Anonymous' + + await new Promise((resolve, reject) => { + img.onload = resolve + img.onerror = reject + img.src = imageDataUrl + }) + + // Extract dominant color using color-thief + const dominantColor = colorThief.getColor(img) + + if (dominantColor && Array.isArray(dominantColor) && dominantColor.length === 3) { + // Convert to light pastel color with same hue + const [r, g, b] = dominantColor + backgroundColor.value = rgbToLightPastel(r, g, b) + } + + await initializeCanvas() + } catch (error) { + console.error('Failed to extract dominant color:', error) + // Fallback to default white background + backgroundColor.value = '#FFFFFF' + await initializeCanvas() + } +} + const selectHistoryItem = async (index: number) => { if (index < 0 || index >= historyList.value.length) return