How to Crop Bitmaps in CorelDRAW

In this tutorial, I’m using an older version of CorelDRAW to demonstrate. But you can use these same techniques with virtually any version. Before we get started though, let me clarify one potential confusion point. If you’re using a recent CorelDRAW version, you might understandably reach for the Crop Tool.

The Crop Tool provides an automated way of cropping objects — including digital images. When it was first introduced (version 13) applying it to an object essentially deleted all content outside the cropping area you specified. Although this meant it was treat tool for cropping individual objects, it prevented you from cropping objects already inserted or embedded into an existing arrangement or montage. If you’re using version 15, you’ll discover this behavior has been fixed. Just wanted to get that off my chest.

The technique I’ll cover in this tutorial is the manual method that will enable you to crop at the vector level by manipulating the invisible path surrounding the digital image using the Shape Tool (F10). The Shape Tool method is more involved and perhaps less convenient than the Crop Tool, but it provides more control and gives you the added bonus of being able to custom craft the bitmap shape to an unconventional shape if needed.

Unlike bitmap-editing applications, all digital images in CorelDRAW are essentially bitmap-based objects housed inside invisible containers. This means the clipping path contains the image and its shape determines the bitmap’s overall shape. Although these containers are inherently invisible, they are an integral characteristic of each bitmap in your document. Control the shape of the container and you control the cropping of the bitmap it contains.

To shape a bitmap container, you’ll need to use the Shape Tool to change the position of the path nodes comprising it. Let’s walk through at a typical rectangular-shaped cropping operation by following these brief steps.

1. To begin, you’ll need to have a bitmap at the ready. Bitmaps may be converted from vector objects using the Convert to Bitmap command, or brought in from an external source using the Import command (Ctrl+I). Once on your page, simply click to select the bitmap itself.
2. If you choose to Import your bitmap, you can crop it before it reaches your page by choosing Crop from a drop-down menu in the Import dialog (shown next).
3. After choosing Crop and clicking OK, the Crop Image dialog (shown next) will open enabling you to either use the Hand-style cursor to interactively set the rectangular cropping, or by entering values in the Top, Left, Width, and Height boxes followed by clicking OK. Doing this will enable you to place a permanently cropped copy of your selected bitmap onto your page.
4. If the image you wish to crop already exists in your document, and you wish to crop it, choose the Shape Tool (F10) and click to select the bitmap. Notice four nodes appear at the corners of the image (shown next). Dragging these points will cause the bitmap’s clipping path shape to change, enabling you to hide portions of the bitmap from view withoutdeleting the pixels.
5. Using the Shape Tool cursor, click one of these nodes and drag it toward the center origin of the image. Notice that after you release the mouse, a portion of the image is hidden (as shown next).
   
6. Drag the same corner node back to roughly its original position and notice that the hidden portion of the image is visible again. You have just performed the most basic of cropping operations.

Most digital images are usually cropped either vertically or horizontally to fit a square or rectangular space. This requires moving the corner nodes while maintaining their alignment.

To perform a side, top, or bottom cropping operation on a bitmap, you’ll need to have at least two corner nodes selected at one time, and they must be moved either using nudge keys or by dragging. The dragging operation is a little trickier than you might think, since it involves selecting and moving two corner nodes while holding a modifier key to constrain the drag movement.

To crop a bitmap by dragging, follow these steps:

1. Using the Shape Tool, click to select the bitmap. Determine which side you wish to crop, and select both corner nodes on the side by holding Shift while clicking once on each node, or click-drag to select them with the marquee.
2. Once the nodes are selected, hold Ctrl as the modifier key while dragging both nodes toward the center of your bitmap. Holding Ctrl constrains your dragging movement, which keeps the sides in vertical and horizontal alignment.
3. Continue cropping any of the sides using this same procedure until the cropping operation is complete. The example shown next illustrates typical results of cropping.
4. As a final optional step, you can eliminate the hidden portion of the image using the Crop Bitmap command either by choosing Bitmaps > Crop Bitmap or by clicking the Crop Bitmap button (shown next) in the Property Bar using the Pick Tool and while a cropped bitmap is selected. Doing this will permanently remove the image portions which are hidden from view enabling you to reduce your document file size.
   

Keep in mind that you can also use this cropping technique to create non-rectangular cropping shapes by adding nodes to the bitmap container and manipulating the curve properties as shown below.

The next two examples illustrate the benefits of careful photo cropping. In these examples, a photo montage has been laid out without cropping and then improved through careful cropping and re-arrangement.

Source : TutorCorelDraw

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Ditulis Unknown — Kamis, 23 Februari 2017 — Add Comment — CorelDraw, Education, Tutorial