I understand that the resizing feature allows you to constrainOf course we can resize, and not only don't we need to convert, we don't need to do the math. Let's open an image in Painter. This one will do.
the image resolution, but is there not a way to resize
image dimensions disproportionately?
For example say you have an image that is 400 by 400 pixels
and want simply to resize it to 350 X 280. How is this done?
Or do you have to do the math adding the flippin inches/pixels
in the Canvas/Canvas size EACH time? I hope not...that would be pretty lame of the programmer. LOL. ~Pine
This image is on a perfectly square canvas. 300 pixels across and down.
On the Painter menu bar, click Canvas > Resize. You'll see the following
dialog box.
All the image's vital statistics are described in this dialog box, and are also capable of being changed here.
From the Manual:If you change the Width of the canvas to 150 pixels, the height will decrease by half, too. Be aware that this will throw away image data. Your file size will decrease because every four pixel square has been merged into 1.
When Constrain File Size is disabled, you can change the height and width independently of the resolution, and the converse.If you choose Pixels or Percent as the unit and enter a value, Painter 7 automatically disables the Constrain option.
Try this:
1. Choose Canvas > Resize
2. Change the width to 10 pixels (yes, ten.)
3. Click OK.
4. Choose Canvas > Resize again.
5. Set the Width to 300 pixels. This is exactly what you started with.
6. Click OK.
7. This should convince you that reducing the ppi throws away data.
8. Type Ctrl-Z twice (undo, undo) to get back to your previous file
size.
Let's change the unit of measurement on the Width window to Inches, and then change the width from 4.167 inches to 6 inches. The height will reflect our change by increasing to 432 pixels. The file size is also going to increase.
Notice the New Size. The file has increased from 352K to 729K.
Bear in mind that you are not adding data to the file. You are chopping its pixels into smaller bits. There will still be 72 of them in every inch, but we will have more inches, and therefore more pixels. We will lose a tiny bit of sharpness, though you won't notice that visually with such a small change. If we had doubled the pixels instead - from 300 to 600 - the sharpness wouldn't have suffered. We'd merely have been cutting each existing pixel into four pieces.
Also notice that as soon as we start messing with the file size via Width or Height, the Constrain File Size box loses its check.
Painter tries to keep you from messing up your ratio. And since it is not an Image Manipulation program, but a Painting program, this is entirely proper for it to do.
Of course we can. It's just not the most intuitive thing you'll ever do.
1. Start by selecting the entire image. Ctrl-A.2. Choose Canvas > Canvas Size
We want to stretch this image by 100 pixels horizontally. The first thing we need is some extra canvas space.3. In the resulting dialog box, let's add 100 pixels to the left of the canvas. Click OK. (We could also add it to the right, or add 50 to both left and right.
4. You will have an extra amount of canvas on the left of your image, and it will be the color of your "paper." White in this case. You will also still have the original pixels selected.5. Choose the Layer Adjuster tool (F for Finger(?)) and click your selection.
6. Choose Image > Orientation > Free Transform.
7. Stretch the left handle to fill your canvas.
You can resize, scale, rotate, etc., selections. The order is 1. Select, 2. Finger, 3. Click, 4. Effects > Orientation. Free Transform is a good choice if it is available, but Rotate is not available in Free Transform.
Here we go. A lassoed selection, transformed and rotated.
Canvas resized to 200 pixels.