Examples with ImageRectangle_F32 boofcv.struct.ImageRectangle_F32 used on opensource projects

Example 1 with ImageRectangle_F32

use of boofcv.struct.ImageRectangle_F32 in project BoofCV by lessthanoptimal.

the class DistortImageOps method boundBox_F32.

/**
 * Finds an axis-aligned bounding box which would contain a image after it has been transformed.
 * The returned bounding box can be larger then the original image.
 *
 * @param srcWidth Width of the source image
 * @param srcHeight Height of the source image
 * @param transform Transform being applied to the image
 * @return Bounding box
 */
public static RectangleLength2D_F32 boundBox_F32(int srcWidth, int srcHeight, PixelTransform2_F32 transform) {
    ImageRectangle_F32 r = new ImageRectangle_F32();
    r.x0 = r.y0 = Float.MAX_VALUE;
    r.x1 = r.y1 = -Float.MAX_VALUE;
    for (int y = 0; y < srcHeight; y++) {
        transform.compute(0, y);
        updateBoundBox(transform, r);
        transform.compute(srcWidth, y);
        updateBoundBox(transform, r);
    }
    for (int x = 0; x < srcWidth; x++) {
        transform.compute(x, 0);
        updateBoundBox(transform, r);
        transform.compute(x, srcHeight);
        updateBoundBox(transform, r);
    }
    return new RectangleLength2D_F32(r.x0, r.y0, r.x1 - r.x0, r.y1 - r.y0);
}