Method inside

ij/src/main/java/ij/gui/Wand.java:286–291

(int x, int y)

    // check pixel at (x,y), whether it is inside traced area
    private boolean inside(int x, int y) {
        if (x<0 || x>=width || y<0 || y>=height)
            return false;
        float value = getPixel(x, y);
        return value>=lowerThreshold && value<=upperThreshold;
    }

    // check pixel in a given direction from vertex (x,y)
    private boolean inside(int x, int y, int direction) {