You can try this , it work for me :
import SwiftUI
import CoreImage
import CoreImage.CIFilterBuiltins
import UIKit
struct ContentView: View {
var body: some View {
if let image = UIImage(named: "ka") {
DominantColorView(image: image)
} else {
Text("Image not found")
}
}
}
func extractDominantColor(from image: UIImage) -> UIColor? {
guard let inputImage = CIImage(image: image) else { return nil }
let extentVector = CIVector(x: inputImage.extent.origin.x, y: inputImage.extent.origin.y, z: inputImage.extent.size.width, w: inputImage.extent.size.height)
guard let filter = CIFilter(name: "CIAreaAverage", parameters: [kCIInputImageKey: inputImage, kCIInputExtentKey: extentVector]) else { return nil }
guard let outputImage = filter.outputImage else { return nil }
var bitmap = [UInt8](repeating: 0, count: 4)
let context = CIContext(options: [.workingColorSpace: kCFNull!])
context.render(outputImage, toBitmap: &bitmap, rowBytes: 4, bounds: CGRect(x: 0, y: 0, width: 1, height: 1), format: .RGBA8, colorSpace: nil)
return UIColor(red: CGFloat(bitmap[0]) / 255.0, green: CGFloat(bitmap[1]) / 255.0, blue: CGFloat(bitmap[2]) / 255.0, alpha: CGFloat(bitmap[3]) / 255.0)
}
struct DominantColorView: View {
let image: UIImage
var dominantColor: Color {
if let uiColor = extractDominantColor(from: image) {
return Color(uiColor)
} else {
return Color.clear
}
}
var body: some View {
ZStack {
dominantColor
Image(uiImage: image)
.resizable()
.scaledToFit()
.frame(height: 200)
.shadow(radius: /*@START_MENU_TOKEN@*/10/*@END_MENU_TOKEN@*/, x: -12, y: 12)
}
}
}