Return cropped image with full area

[shaikhtariq11]

Please let me know can i get just cropped image without clear background as a full cropped image. Right now my image is cropping but returning the full image area with crop.

ped one.

I want it should come with full image part. image is centered aligned. Thank You.

[jberlana]

I'm sorry, you can not with this version of the code. But fell free to extend my code and send a PR

[Coder-ACJHP]

Please let me know can i get just cropped image without clear background as a full cropped image. Right now my image is cropping but returning the full image area with crop.

ped one.

I want it should come with full image part. image is centered aligned. Thank You.

Did you find any solution for this situation?

[jberlana]

Sorry, I am not working on it. Feel free to solve it and send a PR or fork this project and improve it. This is open source.

[Coder-ACJHP]

Now I find solution, crop your image with transparent option then remove transparent parts of image with this extension :

`extension UIImage {

func cropImageByAlpha() -> UIImage {
    let cgImage = self.cgImage
    let context = createARGBBitmapContextFromImage(inImage: cgImage!)
    let height = cgImage!.height
    let width = cgImage!.width

    var rect: CGRect = CGRect(x: 0, y: 0, width: CGFloat(width), height: CGFloat(height))
    context?.draw(cgImage!, in: rect)

    let pixelData = self.cgImage!.dataProvider!.data
    let data: UnsafePointer<UInt8> = CFDataGetBytePtr(pixelData)

    var minX = width
    var minY = height
    var maxX: Int = 0
    var maxY: Int = 0

    //Filter through data and look for non-transparent pixels.
    for y in 0..<height {
        for x in 0..<width {
            let pixelIndex = (width * y + x) * 4 /* 4 for A, R, G, B */

            if data[Int(pixelIndex)] != 0 { //Alpha value is not zero pixel is not transparent.
                if (x < minX) {
                    minX = x
                }
                if (x > maxX) {
                    maxX = x
                }
                if (y < minY) {
                    minY = y
                }
                if (y > maxY) {
                    maxY = y
                }
            }
        }
    }

    rect = CGRect( x: CGFloat(minX), y: CGFloat(minY), width: CGFloat(maxX-minX), height: CGFloat(maxY-minY))
    let imageScale:CGFloat = self.scale
    let cgiImage = self.cgImage?.cropping(to: rect)
    return UIImage(cgImage: cgiImage!, scale: imageScale, orientation: self.imageOrientation)
}

private func createARGBBitmapContextFromImage(inImage: CGImage) -> CGContext? {

    let width = cgImage!.width
    let height = cgImage!.height

    let bitmapBytesPerRow = width * 4
    let bitmapByteCount = bitmapBytesPerRow * height

    let colorSpace = CGColorSpaceCreateDeviceRGB()        
    let bitmapData = malloc(bitmapByteCount)
    if bitmapData == nil {
        return nil
    }

    let context = CGContext (data: bitmapData, width: width, height: height, bitsPerComponent: 8, bytesPerRow: bitmapBytesPerRow, space: colorSpace, bitmapInfo: CGImageAlphaInfo.premultipliedFirst.rawValue)

    return context
}

}`

So you can use it like this :

guard let resultImageRef = cropperImageView.getCroppedImage(withTransparentBorders: true) else { return } let resultImage = resultImageRef.cropImageByAlpha()

[Coder-ACJHP]

I'm not good in Obj-c thats why I cant send pull request, if you can convert this extension to obj-c than add it to your framework. Thank you for your support

[will0206]

I'm not good in Obj-c thats why I cant send pull request, if you can convert this extension to obj-c than add it to your framework. Thank you for your support

It's works!!!

Thank you for your sharing, can I use these code to create a new project ? I think many people will need these.

[Coder-ACJHP]

I'm not good in Obj-c thats why I cant send pull request, if you can convert this extension to obj-c than add it to your framework. Thank you for your support

It's works!!!

Thank you for your sharing, can I use these code to create a new project ? I think many people will need these.

If you asking about my extension, yes you can use it like your own code ☺️ but I no have idea about entire framework

[yuriiHavran]

I'm not good in Obj-c thats why I cant send pull request, if you can convert this extension to obj-c than add it to your framework. Thank you for your support

It's works!!!

Thank you for your sharing, can I use these code to create a new project ? I think many people will need these.

Dear, i am trying to get cropped image from imageview, but i can't get ... It is getting the entire image, if you have a good way, pleaes share your good experience with me. maybe other developers are looking the same result. thanks.