QMap - 调整大小

图像调整大小是对图像的整体缩放，以适应不同的应用。

现按软件功能界面介绍如下：

1. 选择图像
    在图像上点击鼠标右键，选中图像。同时，图像的原始大小（宽与高）呈现在编辑框中。

2. 约束比例
    默认时，选择“约束比例”，修改编辑框中的宽，对应的高会按原图像的宽高比率进行变化，反之也然。图像也可不按比率变化，就会产生变形。

3. 处理
    点击“处理”按钮进行处理。如要恢复原图像，可点击工具栏上“恢复”按钮（Ctrl+Z）。




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