Monday, September 28, 2009

Various Shapes And Images File Extention

In The world of graphic design you may often find the extention as *.JPEG, *.JPG, *.PSD and others. What and where lies the difference in the image file extention, for more detail, please read this artile:

PSD (Photoshop Document)


This file format is the native format of Adobe Photoshop. This format can store the information layer and alpha channel contained in an image, so that one day can be opened and edited again. This format is also able to save images in some fashion colors provided Photoshop. You can save this file format if you want to edit it again.

BMP (Bitmap Image)

This file format is a flexible graphics format for Windows platform that can be read by any graphics program. This format can store information with high levels served until 1 bits 24 bits. The weakness of this file format is not able to save the alpha channel, and there are obstacles in the exchange platform. To create an object as a desktop wallpaper, save your document with this file format. You can compress this file format with RLE compression.
This file format capable of storing images in color modes RGB, Grayscale, Indexed Color, and Bitmap.

EPS (Encapsuled Postcript)

This file format is a format often used for document exchange between graphical programs. In addition, this file format often used when want to print pictures. Advantages of this file format using postscript language so that this file format recognized by almost all print preparation programs.
The weakness of this file format is not able to save the alpha channel, so that many users of Adobe Photoshop to use this file format when the image is done is final. This file format can store pictures in color mode RGB, CMYK, Lab, duotone, Grayscale, Indexed Color and Bitmap. Also the file format is also able to save the clipping path.

JPG / JPEG (Joint Photographic Expert Group)

This file format can compress the object with a high level in accordance with the options provided. File format is often used to store images that will be used for web pages, multimedia, and other electronic publications. This file format can store pictures in color mode RGB, CMYK, and Grayscale. This file format is also capable of storing alpha channel, but because of its orientation to the format of the electronic publication of this relatively smaller size compared to other file formats.

GIF (Graphic Interchange Format)

This file format can only store in 8 bits (only supports the Grayscale color mode, Bitmap and Indexed Color). This file format is a standard format for electronic publications and the Internet. File format capable of storing two-dimensional animation that will be published on the Internet, web page design and electronic publications. This file format can compress a small size using LZW compression.

TIF (Tagged Image File Format)

This file format can store pictures with the quality up to 32 bits. This file format can also be used for the purposes of exchange between platforms (PC, Machintosh, and Silicon Graphics). This file format is one of the selected format and is preferred by computer users, especially graphics-oriented publications (print). Almost all programs that can read bitmap file formats are also able to read the TIF file format.

PCX

This file format was developed by a company called Zoft Cooperation. This file format is a flexible format for nearly all programs on your PC able to read images with this file format. This file format can store bits of information depth of 1 to 24 bit but was unable to save the alpha channel. This file format can store pictures in RGB color mode, Grayscale, and Indexed Color Bitmpa.

PDF (Portable Document Format)

This file format used by Adobe Acrobat, and can be used by the pixel-based graphics or vector. This file format can store pictures in color mode RGB, CMYK, Indexed Color, Lab Color, Grayscale and Bitmap. This file format is not able to save the alpha channel. This file format is often used JPG and ZIP compression, except for the color mode of bitmap using CCIT.

PNG (Portable Network Graphic)

This file format serves as an alternative to GIF file format. This file format used to display objects in web pages. The advantages of this file format compared to the GIF format is the ability to save files in the bit depth to 24 bit and capable of producing background (background) is transparent with a smooth edge. This file format can store alpha channel.


PIC (Pict)

This file format is standard in the Macintosh graphics applications and text-processing program with high quality for the transfer of documents between applications. This file format can store pictures in RGB color mode with alpha channel 1 and Indexed Color, Grayscale and bitmap without alpha channel. This file format also provides a choice between 16-bit and 32 bit in RGB color mode.

TGA (Targa)

This file format is designed for platforms that use the Targa True Vision Video Board. This file format capable of storing images in RGB color mode and 32 bit alpha channel 1, also Grayscale, Indexed Color, RGB and in 16 or 24 bits without alpha channel. This file format allows you to save a document from the rendering of the animation program with a sequence of output results as 3D Studio Max.

IFF (Interchange File Format)

This file format is commonly used to work with the Video Toaster and the exchange process and the documentation of Comodore Amiga System. This file format recognized almost all graphics programs contained in the PC and be able to save images in bitmap color mode. This file format is not able to save the alpha channel.

SCT (Scitex continuous tone)

This file format used to store high-quality documents on Scitex computers. This file format can store pictures in color mode RGB, CMYK, and Grayscale but was unable to save the alpha channel.

PXR (Pixar)

This file format for the exchange of documents with the Pixar Image Computer. This file format can store pictures in color mode RGB and Grayscale with alpha channel 1.

RAW

This file format is a flexible file format for the exchange of documents between applications and platforms. This file format can store color modes RGB, CMYK, and Grayscale with alpha channel 1 and the color mode Multichannel, Lab Color and duotone without alpha channel.

DCS (Desktop Color Separation)

This file format was developed by Quark and is a standard format. Eps. This format can store pictures with Multichannel color mode and CMYK with alpha channel and 1 more spot channel. This file format capable of storing clipping path and is often used for process printing (publishing). When saving files in this format is to be stored is 4 channels of the image and the preview channel 1.

Compression format

Some programs are oriented primarily on electronic publications and multimedia file format always requires a small-sized so that when opened will not be slow. For the purposes of the required compression.
The following file formats oriented electronic publishing and multimedia compression respectively.

RLE (Run Length Encoding)

This compression can compress files without losing detail. Used by Adobe Photoshop, TIFF and most of the programs included in Windows.

LZW (Zif-Lemple-Welf)

Just like RLE compression, compression is also able to compress files without losing detail. Compression is used by TIFF, PDF, GIF, and format that supports postscript language. This is very good compression to compress images with large areas using color 1.

JPG (Joint Photographic Experts Group)

These formats compress the file by removing detail. This file format is often used by JPG, PDF, and formats that use the postscript language. This is very good compression used for images with continuous tones like photos.

CCIT

CCIT is an abbreviation of the French language in English is called the International Telegraph and Telekeyed Consultive Committee.
Compression is used to compress black and white images, and can compress files without losing detail. Compression is often used by the PDF and other formats using postscript language.

NOTES
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  • When storing documents in file formats that can not save the information layer, then you must change the image into image flaten first.
  • File format that can store duotone color mode is EPS, RAW, and PSD. Therefore, when you want to save in another format then you must change the first color mode, the RGB when the document did not want to print, because it duotone information will be broken down into RGB.
  • File format that can store Color Lab color mode is PSD, RAW, TIF, PDF, and EPS. File format that can store CMYK color mode only PSD, RAW, EPS, TIF, JPG, PDF, dams SCT.
  • Color Indexed Color mode can save some settings file format indexed according to its color.
  • Dapatdisimpan RGB color mode on all existing file formats in Adobe Photoshop.
  • The format recommended by the professional designers is
o PSD = for documents that still want to edit again
o EPS = to have final documents for print preparation
o JPG= to print compression above 8 bits and for photos in the web with compression below
o GIF = for illustration and animation on web pages.
o TIF = to print, cross-platform exchange of documents and animated sequences

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