HOW TO MAKE AN IMAGE SMALLER IN PAINTBRUSH MAC HOW TO You can always make an image smaller but you can never make it bigger so go bigger if you think your image might one day be destined for print. On your Windows desktop, click the Start button then go to All Programs. You could spend an entire semester learning about color modes at graphic design school but for now let’s just say that RGB color is what we want to use to make images for the web. Find the folder for Accessories then find and click Paint. This will launch your MS Paint interface. Once you’re on MS Paint, open the photo or image that you want to crop and place on top of another image. Equivalent of the classic Paint of Microsfot Windows. The fact is that having an application like Paintbrush installed so that the kids stop nagging you should be a standard in the computer world. Support for different transparency standards.Compatible with BMP, JPEG, PNG, TIFF and GIF formats.Lightweight, practical and easy to use.Simple edition utilities: cut, paste, crop, resize.Basic drawing and painting tools for Mac.Paintbrush is a lite image edition tool very similar to Paint. The best solution to satisfy the demand of many Mac users for a simplified drawing program is to download Paintbrush for free. On a Mac, this shortcut is Option + Control + Click & Drag Horizontally. Edit images in a simple manner or create your own sketches on a blank canvas, bring out your creativity with Paintbrush. To make life even easier, you can hold down either of these keys to scale large amounts with less effort. Using The Brush Preset Panel To Change The Brush Size. HOW TO MAKE AN IMAGE SMALLER IN PAINTBRUSH MAC FULL.HOW TO MAKE AN IMAGE SMALLER IN PAINTBRUSH MAC PDF.HOW TO MAKE AN IMAGE SMALLER IN PAINTBRUSH MAC FOR MAC.HOW TO MAKE AN IMAGE SMALLER IN PAINTBRUSH MAC HOW TO.RgbBlue := (rgbBlue * rgbReserved) div $FF ĭrawOpacityBrush(. RgbGreen := (rgbGreen * rgbReserved) div $FF RgbRed := (rgbRed * rgbReserved) div $FF must pre-multiply the pixel with its alpha channel before drawing If (rgbRed = ColorR) and (rgbGreen = ColorG) and (rgbBlue = ColorB) then procedure DrawOpacityBrush(ACanvas: TCanvas X, Y: Integer AColor: TColor ASize: Integer Opacity: Byte) īmp.PixelFormat := pf32Bit // needed for an alpha channelīrush.Color := clFuchsia // background color to mask out Then, when calling TCanvas.Draw(), set its opacity to 255 to tell it to use just the per-pixel opacities. To accomplish the affect you want, you need to create a 32-bit TBitmap so you have a per-pixel alpha channel, then fill in the alpha for each pixel, setting the alpha to 0 for pixels you don't want, and setting the alpha to the desired opacity for the pixels you do want. The Opacity feature of TCanvas.Draw() does not support what you are trying to do, at least not the way you are trying to use it. Just a solid white square and solid filled red circle. If I set Bmp.Transparent := True there is still a white box, but no opacity anymore. How can I render a brush with opacity as illustrated in the screenshots, but without that square around the brush circle? Which works, except that annoying square around the edge. The idea I had (based on Andreas way of creating an ellipse with opacity) was to render a typical brush on the canvas, assign it to a offscreen bitmap then redraw it onto the main bitmap with the opacity. Procedure TForm1.Image1MouseDown(Sender: TObject Button: TMouseButton ĭrawOpacityBrush(, X, Y, clRed, 50, 85) This is my code used to produce those results: procedure DrawOpacityBrush(ACanvasBitmap: TBitmap X, Y: Integer ĪColor: TColor ASize: Integer Opacity: Integer) Ī(X, Y, Bmp, Opacity) Take a look at these next two images, the first is with the transparent background and the second with a black background to show the problem more clearer:Īs you can see, around the brush (circle) is a really annoying square I cannot get rid of. I have looked at what Andreas did, and came up with my own simplified attempt but I am stuck with a problem. I found this question earlier whilst searching around: Draw opacity ellipse in Delphi 2010 - Andreas Rejbrand has provided a few examples in his answer for that question. Rather than have one flat color been drawn, setting the opacity of the brush allows different levels of color depth etc. What I would like to achieve is the ability to set the opacity of the brush, allowing further possibilities for image editing in my program. Placed inside the TImgView32 I have a regular TImage, where I will be drawing onto the canvas, something like this: From the GR32 library, I am using TImgView32 to render a grid which will be my transparent background like so:
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |