Image, graphic, picture file format

image, graphic, picture file format

1	BMP (. BMP) bitmap	The image file format used by the Windows system. BMP files occupy a large amount of space. BMP file Image depth selectable lbit, 4bit, 8bit and 24bit. BMP files when storing data, the image is scanned in order from left to right, from bottom to top.
2	PCX (. PCX)	PCX is the image file format for PC brushes. PCX is one of the first file formats to support color images, and now supports up to 256 colors. The image depth of PCX can be selected as L, 4, 8bit. Because this file format appears earlier, it does not support true color.
3	tiff (. TIF)	is a more general image file format developed by Aldus and Microsoft for desktop publishing systems. The TIFF format is flexible and variable, and it defines four different formats: Tiff-b for two-value images: Tiff-g for black-and-white grayscale images, tiff-p for color images with palettes: Tiff-r for RGB true color images. tiff supports multiple encoding methods, including RGB uncompressed, RLE compression, JPEG compression, and more. tiff is the most complex of the existing image file formats, it is extensible, convenient, and can be modified to provide IBMPC and other environments in the operation, image editing programs.
4	gif (. GIF)	Graphics Interchange Format (G raphics I Nterchange F ormat ), is the image file format developed by CompuServe Company in 1987. GIF file data is a lossless compression format based on the LZW algorithm for continuous tones. Its compression rate is generally around 50%, it does not belong to any application. Almost all related software supports it, and the public domain has a lot of software in use with GIF image files. gif image file is compressed, and the compression algorithm of variable length is adopted. So GIF image depth from lbit to 8bit, that is, GIF supports up to 256 colors of images. Another feature of the GIF format is that it can store multiple color images in a GIF file, which can form the simplest animation if multiple images stored in a file are read out and displayed on the screen. gif decoding is faster because the GIF image in interlaced storage can be divided into four times when the side decode edge is displayed. The first scan shows only one-eighth of the entire image, and the second scan shows only 1/4, but this shows the overall picture. When displaying a GIF image, an interlaced image gives you the impression that it appears to be faster than other images, which is an advantage of interlaced storage, and that GIF does not support alpha transparent channels.
5	JEPG (. jpg/. JEPG)	The Joint Photographic Expert Group (Joint photographic EXpert Group) JPEG is also the most common image format, it is composed of joint Photographic Experts Group (Joint Photographic Experts Group), Is the most commonly used image file format, developed by a software development consortium, is a lossy compression format, the image can be compressed in a small storage space, the image of repetitive or unimportant information will be lost, so it is easy to cause damage to the image data.
6	Targe (. TGA)	TGA image format is the largest feature can make irregular shape graphics, image files, general graphics, image files are four square, if need to have round, diamond or even a wisp of empty image files, TGA can be used! The TGA format supports compression, using an undistorted compression algorithm. is a better picture format. For storing color images, supports images of any size and can be up to 32 bits in color. Professional graphic users often use the TGA lattice format to preserve a realistic three-dimensional source image.
7	Exif	Exchangeable image File Format (EXchangeable Image file Format), 1994 Fuji company advocated digital camera image file format, in fact, the same as the JPEG format, The difference is that in addition to saving image data, it is also possible to store photographic dates, use aperture, shutter, flash data and other exposure data and accompanying information as well as small size images.
8	FPX	Flash photo (Kodak Flash PiX) This image file format extension FPX, developed by Kodak, Microsoft, HP and live Pictureinc, was formally published in June 1996, and FPX is a multi-resolution image format, That is, the image is stored in a series of high and low resolution, the advantage of this format is that when the image is enlarged to maintain the quality of the image, in addition, when the modified FPX image, only the modified parts will be processed, the entire image will not be processed together, thereby reducing the processor and memory burden, so that the image processing time is reduced. Its multi-resolution storage method is favored by many people.
9	Svg	Scalable Vector Graphics (Scalable Vector Graphics). It is based on XML (a subset of standard generic markup languages), developed by the World Wide Web Consortium. An open standard vector graphics language, can be arbitrarily enlarged graphics display, edge anomaly clear, the text in the SVG image retained editable and searchable state, no font restrictions, the resulting file is very small, download quickly, is very suitable for the design of high-resolution Web graphics page.
10	Psd	(PhotoShopDocument) This is a dedicated file format for Photoshop image processing software, with the file name extension. PSD, which can support various image features of layers, channels, masks, and different color modes, is a non-compressed original file Save format. Scanners cannot directly generate files of that format. PSD files can sometimes be very large, but because all the original information, in the image processing for the unfinished image, choose PSD format to save is the best choice.
11	CDR (. CDR)	The CDR format is a dedicated graphics file format for the famous drawing software CorelDRAW. Since CorelDRAW is a vector graphics software, CDR can record the properties, location, and paging of a file. However, it is relatively poor in compatibility and can be used in all CorelDRAW applications, but other image editing software cannot open such files.
12	Pcd	Photo Laser discs (kodak Photocd), a photo CD file format developed by Kodak, can be read only by other software systems. This format defines the colors in the image using the YCC color mode. The YCC and CIE color spaces contain much more color than RGB and CMYK colors for displays and printing devices. PhotoCD images are mostly of very high quality.
13	DXF (. dxf)	The Drawing Interchange Format (Drawing eX change Format) is a graphic file format in AutoCAD that stores graphics in ASCII form and is accurate in terms of the size of the graphics Can be edited by large software calls such as CorelDRAW and 3DS.
14	Ufo	It is a dedicated image format for the well-known image editing software Ulead photolmapct, capable of recording all photolmapct processed image properties in its entirety. It is worth mentioning that UFO files use objects instead of layers to record image information.
15	EPS (. EPS)	Encapsulated page Description Language (Encapsulated PostScript), is a cross-platform standard format for the storage of vector images and raster images. The EPS format is described in PostScript and can hold other types of information, such as multi-tone curves, alpha channels, separations, clipping paths, hanging information, and tone curves, so the EPS format is often used for printing or printing output. Multiple EPS format options in Photoshop Enable comprehensive control of print printing, in some cases even better than the TIFF format.
16	Png	Portable Network Graphics (Portable Network Graphics) are the latest image file formats accepted online. PNG can provide lossless compressed image files that are 30% smaller in length than GIF. It also provides 24-bit and 48-bit true color image support and many other technical support. Because PNG is very new, not all programs can use it to store image files, but Photoshop can handle PNG image files, or it can be stored in a PNG image file format.
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18	hdri	High dynamic range imaging (H igh D ynamic Range I maging) The hdri file is a file with an HDR or TIF format that is capable of saving illumination information, but not necessarily a panorama. Dynamic range refers to the relative ratio between the brightest and darkest parts of a scene. An HDR image that records the luminance values of the actual scene far beyond the 256 levels, and the excess is not visible on the screen. hdri has a greater range of brightness than normal RGB format images (8bit only). Standard RGB (red-green-blue) image maximum brightness is the value is 255/255/255, if using such an image combined with light energy transmission lighting a scene, even the brightest white is not enough to provide enough illumination to simulate the real world situation, rendering results will look dull and lack of contrast, The reason is that this image file will present a large range of lighting information in real-life with only a 8bit RGB image description.
19	RAW	The raw Chinese explanation is "raw material" or "unprocessed stuff". The raw file contains all the photo information that the original picture file has before it enters the camera image processor after the sensor has been created. Users can take advantage of certain software on the PC to process images in RAW format.
20	WMF (. WMF)	Only useful in Windows, it saves not the bitmap information but the function call information. It saves the picture as a series of GDI function buckets, and when restored, the application executes the source file to draw an image on the output device. WMF files have device Wu Guangxing, file structure is good, but the coding is complex, inefficient.
21st	DIF (. DIF)	The graphics in AutoCAD, which store images in ASCII format, are very precise in size and can be edited by software called CorelDRAW, 3DS, and so on.

Image, graphic, picture file format