how to display image view background color with hash value

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how to display image view background color with hash values.

i need to place image view background color with #028002.

can any one please help me,

Thank u in advance.

UIColor does not support hex value directly. You need to convert that yourself. Something like this:

CGFloat r = (CGFloat)0x02 / 0xFF;
CGFloat g = (CGFloat)0x80 / 0xFF;
CGFloat b = (CGFloat)0x02 / 0xFF;

[UIColor colorWithRed:r green:g blue:b alpha:1.0]

How to set background color of a View, What you want to do is change the color of the existing background resource. You can set the hex-color to any resource with: View.setBackgroundColor(Color. That, in turn, refers to a bunch of nine-patch bitmap images, available in For setting the first color to be seen on screen, you can also do it in  The HASH command generates a file's hash value using the specified algorithm. The hash value is a unique value corresponding to the content of a file. If two files have the same hash value and they're using SHA256, SHA384, or SHA512, then they have the same content (regardless of their file names or locations). HASH will default to SHA256.

I've used next UIColor Category:

@implementation UIColor(Tools)

+ (UIColor *)colorWithHex:(NSInteger)hex alpha:(CGFloat)alpha {
    return [UIColor colorWithRed:((float)((hex & 0xFF0000) >> 16))/255.0 green:((float)((hex & 0xFF00) >> 8))/255.0 blue:((float)(hex & 0xFF))/255.0 alpha:alpha];


// Example of Usage: 
// backgroundView.backgroundColor = [UIColor colorWithHex:0xe1e1e1 alpha:1.0];

There is no need to parse strings here.

how to display image view background color with hash value, how to display image view background color with hash values. i need to place image view background color with #028002. can any one please  Hi, I'm writing a project which involves the generation of MD5 Hash values from an image, i have analysed the image using MATLAB. I have also gotten to the point of finding a ROI (Region of Interest) but i dont know how i can be able to generate hash values from there.

If you want to convert hash value to UIColor this may help you

android.widget.ImageView.setBackgroundColor java code , Create image view for display back side of flip view * * @param height height for view * @return ImageView with selected height and default background color  Testing different image hash functions For the image-ID component of the ISCC – that is, the content ID of image files – we need a hash function which, for minor changes to the file, produces an identical hash, or rather one that is as similar as possible while producing a small number of false positive collisions.

In swift you can use below method

func hexStringToUIColor (hex:String) -> UIColor {

    var cString:String = hex.trimmingCharacters(in: .whitespacesAndNewlines).uppercased()

    if (cString.hasPrefix("#")) {
        cString.remove(at: cString.startIndex)

    if ((cString.count) != 6) {
        return UIColor.gray

    var rgbValue:UInt32 = 0
    Scanner(string: cString).scanHexInt32(&rgbValue)

    return UIColor(
        red: CGFloat((rgbValue & 0xFF0000) >> 16) / 255.0,
        green: CGFloat((rgbValue & 0x00FF00) >> 8) / 255.0,
        blue: CGFloat(rgbValue & 0x0000FF) / 255.0,
        alpha: CGFloat(1.0)

How to set background color for android layout pragmatically using , Every layout file has a parent View i.e. RelativeLayout, LinearLayout, e.t.c. that holds the sub views like Buttons, TextView, EditText, ImageView e.t.c together. Lets see how we can set background color's to these Layouts with various You can directly specify the value as HEX color code as we do for CSS files in HTML. Get perceptual hash value for image using command line Questions and postings pertaining to the development of ImageMagick, feature enhancements, and ImageMagick internals. ImageMagick source code and algorithms are discussed here.

CSS Image Opacity / Transparency, The opacity property specifies the opacity/transparency of an element. The following example sets the opacity for the background color and not the text:. Use the Image control to display any valid image supported by the requesting browser on the Web page. The path to the displayed image is specified by setting the ImageUrl property. You can specify the text to display in place of image when the image is not available by setting the AlternateText property.

Change background color behind banner image, Yet, when I add a banner image to an index page, I can clearly see that the panel so I'm thinking some sort of code with my background colour's hex code and We really need it to view the actual page if we are to provide a  But if you are comparing against a hash table, you probably do want to decode the image first. However, I do not think cryptographic hashes are suitable for this task at all. harshita is not clear what the goal of the comparison is though.

background, The <background-color> value may only be included in the last layer specified <background-color>: See background-color; <bg-image>: See  The average hash works in the following way : 1st convert to grayscale, 2nd, reduce the size of an image (for instance to an 8x8 image, to further simplify the number of computations), 3rd average the resulting colors (for an 8x8 image we average 64 colors), 4th compute the bits by comparing if each color value is above or below the mean, 5th