How to validate water marked image

[ask007]

Hi,
I have a requirement where I need to validate original image with water marked one. I tried loading image then converting it into Bitmap then compare.

Bitmap expectedImageBmp = Ranorex.Imaging.Load(@"Water_Marked_Image_Path");
Bitmap actualImageBmp = Ranorex.Imaging.Load(@"Original_Image_Path");
Boolean result = Ranorex.Imaging.Compare(actualImageBmp, expectedImageBmp, Imaging.FindOptions.Default);

Is this approach really works with water marked image? Does it validate pixel by pixel? Looking for alternative if any

Thanks

[Support Team]

Hi ask007,

To compare two images, I'd suggest using the Ranorex.Imaging.Compare()-method with the following parameters

Code: Select all

var result = Ranorex.Imaging.Compare(expectedImageBmp,actualImageBmp);

This method returns the similarity of both images, which is calculated by comparing pixel by pixel,

Another possibility would be using

Code: Select all

var result = Ranorex.Imaging.Compare(expectedImageBmp,actualImageBmp,1);

This allows you to set the similarity, which is used to combine the images and it will return true or false.

Hope that helps.

Please let me know , if you need any further help.

Regards,
Markus (S)

[ask007]

It explains what I wanted. So using Ranorex.Imaging.Compare() method, image can be compare pixel by pixel.
Thanks for reverting back