The Crop Image tool provides an intuitive and effective means for the preparation of facade textures, perspective correction, and region selection. Starting with automatically detected facade bounds, select the facade or an element of interest. While it's adjusting, the result visually appears in real time.
To open the tool, click Shapes > Crop Image from the main menu, or click Crop Image from the context menu of an image file in the Navigator window 
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Interface
The Crop Image tool is divided into two dialog windows shown in the following image:
- In the first window, the source image is loaded using the Source Image option. The viewport displays the original image with the perspective frame on top. That frame can be adjusted to crop the facade or element of choice.
- The second window shows the corrected frame selection from the first image. Adjust the image, and click Finish to save the cropped file to the Destination Image path.
Perspective frame manipulation
You can manipulate the perspective frame in the following ways:
- Corners—Drag the corners directly into position.
- Corner handles—Adjust the horizontal or the vertical side line of a corner while keeping the other side line as is.
- Side line—Move the side line perspective in parallel.
Zoom and pan
You can do the following in both viewports:
- Zoom—Use the mouse wheel.
- Pan—Move the mouse while pressing Alt on your keyboard and the middle mouse button.