Does the aspose.imaging.dll support circle/oval/roundRetangle image clip?

Aspose.Imaging Product Family
1

Hi, Support:
I want to know whether the aspose.imaging.dll support clipping a image to circle/oval/roundRetangle shape result, and save the clip image to png with backcolor transperance. If so ,how to work it out?
Thanks.

2

@ducaisoft, you can clip images using Graphics class and next example:

            using (var image = (RasterImage)Aspose.Imaging.Image.Load(@"c:\Users\USER\Downloads\input(1).png"))
            {
                using (var image2 = new PngImage(image.Width, image.Height))
                {
                    var g = new Graphics(image2);
                    g.Clear(Color.Transparent);
                    GraphicsPath path = new GraphicsPath();
                    var figure = new Figure();                    
                    
                    //Circle or oval figure
                    EllipseShape ellipseshape = new EllipseShape(new RectangleF(200, 200, 100, 50));
                    
                    figure.AddShape(ellipseshape);                    

                    path.AddFigure(figure);

                    //Round rectangle
                    GraphicsPath path2 = RoundedRect(100, 100, 100, 100, 8);

                    path.AddPath(path2);
                    g.Clip = new Region(path);
                    g.DrawImage(image, new Point(0, 0));

                    image2.Save(@"c:\Users\USER\Downloads\result.png", new PngOptions() { ColorType = PngColorType.TruecolorWithAlpha });
                }
            }

public static GraphicsPath RoundedRect(int x, int y, int width, int height, int radius)
        {
            Rectangle corner = new Rectangle(x, y, radius, radius);
            GraphicsPath path = new GraphicsPath();
            ArcShape shape = new ArcShape(corner, 180, 90);
            var figure = new Figure();
            figure.AddShape(shape);
            
            corner.X = x + width - radius;
            shape = new ArcShape(corner, 270, 90);
            figure.AddShape(shape);
            
            corner.Y = y + height - radius;
            shape = new ArcShape(corner, 0, 90);
            figure.AddShape(shape);
            
            corner.X = x;

            shape = new ArcShape(corner, 90, 90);
            figure.AddShape(shape);

            figure.IsClosed = true;
            path.AddFigure(figure);

            return path;            
        }
3

Thank you very much.
And else, how to apply opacity (0-255) parameter to the output image?

4

@ducaisoft you can make using How to overlay 4 images with mixed and transparence? - #2 by samer.el-khatib you need to change Alpha of your image like pixel.A = pixel.A*opacity.