Cannot verify an object on screen

Asked by Ioannis

I want to identify an object from an image if exists inside another image, I read the documentation and tested several examples but none of them seems working.

Below is my code in java:

URL path1 = "Sikuli/test1.png";
URL path2 = "Sikuli/test2.png";

Finder finder = new Finder(path1);

finder.find(new Pattern(path2));

if (finder.hasNext()) {

Seems like I am missing something, or sikuli cannot work without a screen object maybe (?)
Any help will be appriciated, regards.

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RaiMan (raimund-hocke) said :

URL path1 = "Sikuli/test1.png";

... is not valid Java: a String cannot be converted to an URL

Finder() and Finder.find() accept valid path strings.
Valid means, that the image file can be loaded from the given path: absolute paths always work if valid.

Relative paths can only be evaluated against a valid ImagePath.

In your case it would give:
String path1 = "Sikuli/test1.png";
Finder finder = new Finder(path1);

[error] ImagePath: find: not in ImagePath: Sikuli/test1.png
[debug] ImagePath: BundlePath: --- not set ---
[error] java.lang.NullPointerException: Cannot invoke "java.awt.image.BufferedImage.getType()" because "bImg" is null

I do not know, where your folder "Sikuli" is in your file system, but something like this would help:

and then:
String path1 = "test1.png";
String path2 = "test2.png";
Finder finder = new Finder(path1);

if (finder.hasNext()) {

would work.

I recommend to use SikuliX 2.0.5 and Java 8+ 64-Bit, because earlier versions are no longer supported in case of problems.

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Ioannis (xmagicianx) said (last edit ):

Thank you for your answer. I really have no issues with image paths, I know that because I have already save 'em as files to check this situation out, when debugging. I think my issue is with the different screen sizes. I take a screenshot from a screen and compare it to another image which is different resolution. I take my images files as follow, I am posting the full code now I have my laptop with me :)

public static boolean imageExist(String kind, String fileName, int secondsWait) {
        Settings.MinSimilarity = Double.parseDouble("sikuli.similarity"));

        //Object to be found
        URL path = SikuliRemote.class.getClassLoader().getResource("Sikuli/" + kind + "/" + fileName);
        String absolutePath = path.getPath();

        try {
            File screenshotFile = ((TakesScreenshot) Serenity.getDriver()).getScreenshotAs(OutputType.FILE);
            Finder finder = new Finder(screenshotFile.getPath());

            if (finder.hasNext()) {
                System.out.println("Object found.");
                return true;
        } catch (Exception e) {
            SerenityUtilities.logMessage("Cannot get a screenshot");

        return false;

I will do some more experiments and will come back.

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Ioannis (xmagicianx) said :
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RaiMan (raimund-hocke) said :

ok, not really fair to give invalid/incomplete information. costs my time.

The image to search must fit into the image to search in.

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