PNGkuvat

PNGkuvat is a term that refers to images saved in the Portable Network Graphics (PNG) file format. PNG is a raster graphics file format that supports lossless data compression. This means that when an image is saved as a PNG, no information is lost during the compression process, resulting in a higher quality image compared to formats that use lossy compression, such as JPEG.

One of the key features of PNG images is their support for transparency. PNG files can have alpha channels, which allow for varying degrees of transparency, from fully opaque to fully transparent. This makes PNG an ideal format for web graphics, logos, and icons where a transparent background is often desired. Unlike GIF, another format that supports transparency, PNG supports 24-bit color, allowing for a much wider range of colors and smoother gradients.

PNG was developed as a more flexible and patent-free replacement for the Graphics Interchange Format (GIF). Its lossless compression makes it suitable for images with sharp lines, text, and areas of solid color, such as diagrams or screenshots. While it excels in these areas, PNG files can be larger than JPEGs for photographic images due to their lossless nature. Therefore, the choice between PNG and other formats often depends on the specific type of image and its intended use.