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
This commit is contained in:
jingrow 2026-01-21 15:14:14 +08:00
parent aca21ce487
commit 0f30876371
3 changed files with 777 additions and 14 deletions

718
package-lock.json generated
View File

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"license": "MIT",
"dependencies": {
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}
},
"node_modules/d3-color": {
"version": "3.1.0",
"resolved": "https://registry.npmjs.org/d3-color/-/d3-color-3.1.0.tgz",
@ -3728,12 +4171,30 @@
"node": ">= 0.6"
}
},
"node_modules/event-target-shim": {
"version": "5.0.1",
"resolved": "https://registry.npmjs.org/event-target-shim/-/event-target-shim-5.0.1.tgz",
"integrity": "sha512-i/2XbnSz/uxRCU6+NdVJgKWDTM427+MqYbkQzD321DuCQJUqOuJKIA0IM2+W2xtYHdKOmZ4dR6fExsd4SXL+WQ==",
"license": "MIT",
"engines": {
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}
},
"node_modules/eventemitter3": {
"version": "5.0.1",
"resolved": "https://registry.npmjs.org/eventemitter3/-/eventemitter3-5.0.1.tgz",
"integrity": "sha512-GWkBvjiSZK87ELrYOSESUYeVIc9mvLLf/nXalMOS5dYrgZq9o5OVkbZAVM06CVxYsCwH9BDZFPlQTlPA1j4ahA==",
"license": "MIT"
},
"node_modules/events": {
"version": "3.3.0",
"resolved": "https://registry.npmjs.org/events/-/events-3.3.0.tgz",
"integrity": "sha512-mQw+2fkQbALzQ7V0MY0IqdnXNOeTtP4r0lN9z7AAawCXgqea7bDii20AYrIBrFd/Hx0M2Ocz6S111CaFkUcb0Q==",
"license": "MIT",
"engines": {
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}
},
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"version": "1.0.1",
"resolved": "https://registry.npmjs.org/events-universal/-/events-universal-1.0.1.tgz",
@ -3968,6 +4429,23 @@
"pend": "~1.2.0"
}
},
"node_modules/file-type": {
"version": "16.5.4",
"resolved": "https://registry.npmjs.org/file-type/-/file-type-16.5.4.tgz",
"integrity": "sha512-/yFHK0aGjFEgDJjEKP0pWCplsPFPhwyfwevf/pVxiN0tmE4L9LmwWxWukdJSHdoCli4VgQLehjJtwQBnqmsKcw==",
"license": "MIT",
"dependencies": {
"readable-web-to-node-stream": "^3.0.0",
"strtok3": "^6.2.4",
"token-types": "^4.1.1"
},
"engines": {
"node": ">=10"
},
"funding": {
"url": "https://github.com/sindresorhus/file-type?sponsor=1"
}
},
"node_modules/fill-range": {
"version": "7.1.1",
"resolved": "https://registry.npmjs.org/fill-range/-/fill-range-7.1.1.tgz",
@ -4459,8 +4937,7 @@
"url": "https://feross.org/support"
}
],
"license": "BSD-3-Clause",
"optional": true
"license": "BSD-3-Clause"
},
"node_modules/immutable": {
"version": "5.1.3",
@ -4500,6 +4977,12 @@
"license": "ISC",
"optional": true
},
"node_modules/iota-array": {
"version": "1.0.0",
"resolved": "https://registry.npmjs.org/iota-array/-/iota-array-1.0.0.tgz",
"integrity": "sha512-pZ2xT+LOHckCatGQ3DcG/a+QuEqvoxqkiL7tvE8nn3uuu+f6i1TtpB5/FtWFbxUuVr5PZCx8KskuGatbJDXOWA==",
"license": "MIT"
},
"node_modules/ip-address": {
"version": "10.1.0",
"resolved": "https://registry.npmjs.org/ip-address/-/ip-address-10.1.0.tgz",
@ -4555,6 +5038,12 @@
"node": ">=8"
}
},
"node_modules/is-buffer": {
"version": "1.1.6",
"resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-1.1.6.tgz",
"integrity": "sha512-NcdALwpXkTm5Zvvbk7owOUSvVvBKDgKP5/ewfXEznmQFfs4ZRmanOeKBTjRVjka3QFoN6XJ+9F3USqfHqTaU5w==",
"license": "MIT"
},
"node_modules/is-date-object": {
"version": "1.1.0",
"resolved": "https://registry.npmjs.org/is-date-object/-/is-date-object-1.1.0.tgz",
@ -5155,6 +5644,37 @@
"license": "MIT",
"optional": true
},
"node_modules/ndarray": {
"version": "1.0.19",
"resolved": "https://registry.npmjs.org/ndarray/-/ndarray-1.0.19.tgz",
"integrity": "sha512-B4JHA4vdyZU30ELBw3g7/p9bZupyew5a7tX1Y/gGeF2hafrPaQZhgrGQfsvgfYbgdFZjYwuEcnaobeM/WMW+HQ==",
"license": "MIT",
"dependencies": {
"iota-array": "^1.0.0",
"is-buffer": "^1.0.2"
}
},
"node_modules/ndarray-ops": {
"version": "1.2.2",
"resolved": "https://registry.npmjs.org/ndarray-ops/-/ndarray-ops-1.2.2.tgz",
"integrity": "sha512-BppWAFRjMYF7N/r6Ie51q6D4fs0iiGmeXIACKY66fLpnwIui3Wc3CXiD/30mgLbDjPpSLrsqcp3Z62+IcHZsDw==",
"license": "MIT",
"dependencies": {
"cwise-compiler": "^1.0.0"
}
},
"node_modules/ndarray-pixels": {
"version": "4.1.0",
"resolved": "https://registry.npmjs.org/ndarray-pixels/-/ndarray-pixels-4.1.0.tgz",
"integrity": "sha512-xKPI4zXJ2pkUcVX24zIN1AWqqPWvRWWhRuO6PlY4EdB2VNRauNwA6rDdsAQG/ldQp0sU7nTXgPR/io1duy3Zyg==",
"license": "MIT",
"dependencies": {
"@types/ndarray": "^1.0.14",
"ndarray": "^1.0.19",
"ndarray-ops": "^1.2.2",
"sharp": "^0.33.4"
}
},
"node_modules/negotiator": {
"version": "0.6.3",
"resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.3.tgz",
@ -5421,6 +5941,19 @@
"integrity": "sha512-WUjGcAqP1gQacoQe+OBJsFA7Ld4DyXuUIjZ5cc75cLHvJ7dtNsTugphxIADwspS+AraAUePCKrSVtPLFj/F88w==",
"license": "MIT"
},
"node_modules/peek-readable": {
"version": "4.1.0",
"resolved": "https://registry.npmjs.org/peek-readable/-/peek-readable-4.1.0.tgz",
"integrity": "sha512-ZI3LnwUv5nOGbQzD9c2iDG6toheuXSZP5esSHBjopsXH4dg19soufvpUGA3uohi5anFtGb2lhAVdHzH6R/Evvg==",
"license": "MIT",
"engines": {
"node": ">=8"
},
"funding": {
"type": "github",
"url": "https://github.com/sponsors/Borewit"
}
},
"node_modules/pend": {
"version": "1.2.0",
"resolved": "https://registry.npmjs.org/pend/-/pend-1.2.0.tgz",
@ -5603,6 +6136,15 @@
"url": "https://github.com/prettier/prettier?sponsor=1"
}
},
"node_modules/process": {
"version": "0.11.10",
"resolved": "https://registry.npmjs.org/process/-/process-0.11.10.tgz",
"integrity": "sha512-cdGef/drWFoydD1JsMzuFf8100nZl+GT+yacc2bEced5f9Rjk4z+WtFUTBu9PhOi9j/jfmBPu0mMEY4wIdAF8A==",
"license": "MIT",
"engines": {
"node": ">= 0.6.0"
}
},
"node_modules/progress": {
"version": "2.0.3",
"resolved": "https://registry.npmjs.org/progress/-/progress-2.0.3.tgz",
@ -6141,6 +6683,62 @@
"node": ">= 6"
}
},
"node_modules/readable-web-to-node-stream": {
"version": "3.0.4",
"resolved": "https://registry.npmjs.org/readable-web-to-node-stream/-/readable-web-to-node-stream-3.0.4.tgz",
"integrity": "sha512-9nX56alTf5bwXQ3ZDipHJhusu9NTQJ/CVPtb/XHAJCXihZeitfJvIRS4GqQ/mfIoOE3IelHMrpayVrosdHBuLw==",
"license": "MIT",
"dependencies": {
"readable-stream": "^4.7.0"
},
"engines": {
"node": ">=8"
},
"funding": {
"type": "github",
"url": "https://github.com/sponsors/Borewit"
}
},
"node_modules/readable-web-to-node-stream/node_modules/buffer": {
"version": "6.0.3",
"resolved": "https://registry.npmjs.org/buffer/-/buffer-6.0.3.tgz",
"integrity": "sha512-FTiCpNxtwiZZHEZbcbTIcZjERVICn9yq/pDFkTl95/AxzD1naBctN7YO68riM/gLSDY7sdrMby8hofADYuuqOA==",
"funding": [
{
"type": "github",
"url": "https://github.com/sponsors/feross"
},
{
"type": "patreon",
"url": "https://www.patreon.com/feross"
},
{
"type": "consulting",
"url": "https://feross.org/support"
}
],
"license": "MIT",
"dependencies": {
"base64-js": "^1.3.1",
"ieee754": "^1.2.1"
}
},
"node_modules/readable-web-to-node-stream/node_modules/readable-stream": {
"version": "4.7.0",
"resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-4.7.0.tgz",
"integrity": "sha512-oIGGmcpTLwPga8Bn6/Z75SVaH1z5dUut2ibSyAMVhmUggWpmDn2dapB0n7f8nwaSiRtepAsfJyfXIO5DCVAODg==",
"license": "MIT",
"dependencies": {
"abort-controller": "^3.0.0",
"buffer": "^6.0.3",
"events": "^3.3.0",
"process": "^0.11.10",
"string_decoder": "^1.3.0"
},
"engines": {
"node": "^12.22.0 || ^14.17.0 || >=16.0.0"
}
},
"node_modules/readdirp": {
"version": "4.1.2",
"resolved": "https://registry.npmjs.org/readdirp/-/readdirp-4.1.2.tgz",
@ -6257,7 +6855,6 @@
"version": "5.2.1",
"resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
"integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
"devOptional": true,
"funding": [
{
"type": "github",
@ -6346,7 +6943,6 @@
"version": "7.7.3",
"resolved": "https://registry.npmjs.org/semver/-/semver-7.7.3.tgz",
"integrity": "sha512-SdsKMrI9TdgjdweUSR9MweHA4EJ8YxHn8DFaDisvhVlUOe4BF1tLD7GAj0lIqWVl+dPb/rExr0Btby5loQm20Q==",
"devOptional": true,
"license": "ISC",
"bin": {
"semver": "bin/semver.js"
@ -6456,6 +7052,54 @@
"dev": true,
"license": "ISC"
},
"node_modules/sharp": {
"version": "0.33.5",
"resolved": "https://registry.npmjs.org/sharp/-/sharp-0.33.5.tgz",
"integrity": "sha512-haPVm1EkS9pgvHrQ/F3Xy+hgcuMV0Wm9vfIBSiwZ05k+xgb0PkBQpGsAA/oWdDobNaZTH5ppvHtzCFbnSEwHVw==",
"hasInstallScript": true,
"license": "Apache-2.0",
"dependencies": {
"color": "^4.2.3",
"detect-libc": "^2.0.3",
"semver": "^7.6.3"
},
"engines": {
"node": "^18.17.0 || ^20.3.0 || >=21.0.0"
},
"funding": {
"url": "https://opencollective.com/libvips"
},
"optionalDependencies": {
"@img/sharp-darwin-arm64": "0.33.5",
"@img/sharp-darwin-x64": "0.33.5",
"@img/sharp-libvips-darwin-arm64": "1.0.4",
"@img/sharp-libvips-darwin-x64": "1.0.4",
"@img/sharp-libvips-linux-arm": "1.0.5",
"@img/sharp-libvips-linux-arm64": "1.0.4",
"@img/sharp-libvips-linux-s390x": "1.0.4",
"@img/sharp-libvips-linux-x64": "1.0.4",
"@img/sharp-libvips-linuxmusl-arm64": "1.0.4",
"@img/sharp-libvips-linuxmusl-x64": "1.0.4",
"@img/sharp-linux-arm": "0.33.5",
"@img/sharp-linux-arm64": "0.33.5",
"@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": "sha512-nAu1WFPQSMNr2Zn9PGSZK9AGn4t/y97lEm+MXTtUDwfP0ksAIX4nO+6ruD9Jwut4C49SB1Ws+fbXsm/yScWOHw==",
"license": "MIT",
"dependencies": {
"is-arrayish": "^0.3.1"
}
},
"node_modules/simple-swizzle/node_modules/is-arrayish": {
"version": "0.3.4",
"resolved": "https://registry.npmjs.org/is-arrayish/-/is-arrayish-0.3.4.tgz",
"integrity": "sha512-m6UrgzFVUYawGBh1dUsWR5M2Clqic9RVXC/9f8ceNlv2IcO9j9J/z8UoCLPqtsPBFNzEpfR3xftohbfqDx8EQA==",
"license": "MIT"
},
"node_modules/smart-buffer": {
"version": "4.2.0",
"resolved": "https://registry.npmjs.org/smart-buffer/-/smart-buffer-4.2.0.tgz",
@ -6690,7 +7349,6 @@
"resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
"integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
"license": "MIT",
"optional": true,
"dependencies": {
"safe-buffer": "~5.2.0"
}
@ -6740,6 +7398,23 @@
"node": ">=0.10.0"
}
},
"node_modules/strtok3": {
"version": "6.3.0",
"resolved": "https://registry.npmjs.org/strtok3/-/strtok3-6.3.0.tgz",
"integrity": "sha512-fZtbhtvI9I48xDSywd/somNqgUHl2L2cstmXCCif0itOf96jeW18MBSyrLuNicYQVkvpOxkZtkzujiTJ9LW5Jw==",
"license": "MIT",
"dependencies": {
"@tokenizer/token": "^0.3.0",
"peek-readable": "^4.1.0"
},
"engines": {
"node": ">=10"
},
"funding": {
"type": "github",
"url": "https://github.com/sponsors/Borewit"
}
},
"node_modules/symbol-tree": {
"version": "3.2.4",
"resolved": "https://registry.npmjs.org/symbol-tree/-/symbol-tree-3.2.4.tgz",
@ -6878,6 +7553,23 @@
"node": ">=0.6"
}
},
"node_modules/token-types": {
"version": "4.2.1",
"resolved": "https://registry.npmjs.org/token-types/-/token-types-4.2.1.tgz",
"integrity": "sha512-6udB24Q737UD/SDsKAHI9FCRP7Bqc9D/MQUV02ORQg5iskjtLJlZJNdN4kKtcdtwCeWIwIHDGaUsTsCCAa8sFQ==",
"license": "MIT",
"dependencies": {
"@tokenizer/token": "^0.3.0",
"ieee754": "^1.2.1"
},
"engines": {
"node": ">=10"
},
"funding": {
"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",

View File

@ -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",

View File

@ -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<string>('')
const backgroundColor = ref<string>('#FFFFFF')
const isColorValid = ref<boolean>(true)
let colorChangeDebounceTimer: ReturnType<typeof setTimeout> | 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