JPC is a bitmap image format that uses advanced JPEG 2000 wave compression. It is classified as a JPEG 2000 Code Stream File. JPEG 2000, in turn, is a popular standard for compressing wavelet image data. The .JPC extension supports color depths of 8, 24, and 32 bits per pixel. Also supports grayscale, RGB, YCbCr, XYZ and Lab color space. The file was developed by the standards committee of the Joint Photographic Experts Group. JPC is the successor to the JPEG image format, which is very popular and very common. The updated format is able to provide many additional features. In particular, color spaces. JPC has also gained fame as a variant of JPEG2000. It belongs to a large group of formats that bring a variety of updates to the original JPEG format. For example, J2C, JPM, or J2K. The .jpc file extension is a JPEG 2000 image stream file. This file can be opened using programs such as Corel PaintShop Pro X9, Adobe Photoshop Elements 14, Adobe Photoshop CC, ACD Systems ACDSee 20. You can also save memory snapshot files in the format JPC These JPC files are used by Java application developers.
PCX is one of the first bitmap image formats developed by ZSoft for the PC Paintbrush program. This is the original bitmap format for the DOS / Windows platform. It supports monochrome single-bit black and white images, an eight-bit gray scale, indexed color images, and full-color 24-bit RGB model images. But there is no support for additional color and alpha channels, clipping paths, color management. The format provides for the application of the simplest compression algorithm (RLE) so that information is not lost. Now it has a purely historical significance. The PCX file format has been replaced by newer image formats. However, the format is still used in separate applications in order to scan and send faxes. PCX multi-page fax documents use the .DCX extension. Most DOS-based programs are suitable for viewing PCX (PC eXchange) files. In particular, the viewer Norton Commander. The big drawback of the PCX format is that it has too many versions. This can be explained by the fact that the PCX standard is open, and therefore it has been widely used by most independent software developers. And therefore it is constantly updated.