Kääntötoiminto

Kääntötoiminto, known in English as a flip or rotation, is a common operation in digital image editing and computer graphics. It involves transforming an image by mirroring it either horizontally or vertically. A horizontal flip reverses the image along a vertical axis, so the left side becomes the right side and vice versa. A vertical flip reverses the image along a horizontal axis, making the top the bottom and vice versa.

This function is fundamental for various visual adjustments. For instance, it can be used to correct the orientation of a photograph taken with a camera held upside down or sideways. In graphic design, kääntötoiminto is often employed to create symmetrical compositions or to prepare images for specific layouts. It can also be used creatively to generate mirrored effects or to achieve optical illusions.

Many software applications that handle images, from simple photo viewers to advanced professional editing suites, include a kääntötoiminto. The operation is typically accessible through menus or toolbars, often grouped with other transformation options like cropping or resizing. The process itself is usually non-destructive, meaning the original image data remains intact, and the flipped version is a new output or a temporary display. The underlying mathematical principle involves changing the coordinates of the pixels within the image.