موضوع: ممكن احد يذكر لنا الفوارق صور من فضلكم

ردود: 6 | زيارات: 1060
  1. #1

    Smile ممكن احد يذكر لنا الفوارق صور من فضلكم

    سلام عليكم ورحمة الله وبركاته
    اخوة الكرام انا في الحقيقة اريد اعرف بالتفصيل ما هو الفرق الحقيقي وعلى اساس تتعامل مع انواع الصور في فتوشوب فهناك امتدادات كثيرة في برنامج فتوشوب عن طريق الحفظ ولكن اكثر المستخدمين لا يعرفون كيف نستخدم الصورة المناسبة في مكان المناسب وما هو الفرق بين هذه الصور في خلال الاستخدام .
    ولكم مني خالص تحياتي
    موقع رائع


  2. #2
    الا من يجيب على سؤالي من فضلكم
    موقع رائع

  3. #3
    ارجو مساعدتي يا اخوة الكرام من فضلكم
    موقع رائع

  4. #4
    عضو متميز
    صور رمزية Shady3D
    تاريخ التسجيل
    Nov 2002
    المنطقة
    القـــاهرة - مــصـر
    ردود
    1,484
    Photoshop format
    Photoshop 2.0 (Photoshop)
    AVI (ImageReady)
    BMP
    Photoshop EPS
    Photoshop DCS 1.0 and 2.0 (Photoshop)
    EPS TIFF or EPS PICT Preview (Photoshop)
    Filmstrip
    GIF
    JPEG
    PCX
    PDF
    PICT File
    PICT Resource
    Pixar
    PNG
    QuickTime Movie (ImageReady)
    Raw (Photoshop)
    Scitex CT (Photoshop)
    Targa
    TIFF





    Photoshop 2.0 (Photoshop

    --------------------------------------------------------------------------------

    (Mac OS) You can use this format to open an image in version 2.0 or to export an image to an application supporting only Photoshop 2.0 files. Saving in Photoshop 2.0 format flattens your image and discards layer information.


    AVI (ImageReady)

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    Audio Video Interleave (AVI) format is the standard Windows format for audio/video data.

    Note: In Windows, AVI format is visible in the Files of Type pop-up menu only when QuickTime is installed on your computer.


    BMP


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    BMP is a standard Windows image format on DOS and Windows-compatible computers. BMP format supports RGB, Indexed Color, Grayscale, and Bitmap color modes. You can specify either Windows or OS/2® format and a bit depth for the image. For 4-bit and 8-bit images using Windows format, you can also specify RLE compression.

    BMP images are normally written bottom to top; however, you can select the Flip Row Order option to write them from top to bottom. You can also select an alternate encoding method by clicking Advanced Modes. (Flip Row Order and Advanced Modes are most relevant to game programmers and others using DirectX.)


    Photoshop EPS

    --------------------------------------------------------------------------------

    Encapsulated PostScript (EPS) language file format can contain both vector and bitmap graphics and is supported by virtually all graphic, illustration, and page-layout programs. EPS format is used to transfer PostScript-language artwork between applications. When you open an EPS file containing vector graphics, Photoshop rasterizes the image, converting the vector graphics to pixels.

    EPS format supports Lab, CMYK, RGB, Indexed Color, Duotone, Grayscale, and Bitmap color modes, and does not support alpha channels. EPS does support clipping paths. Desktop Color Separations (DCS) format, a version of the standard EPS format, lets you save color separations of CMYK images. You use DCS 2.0 format to export images containing spot channels.To print EPS files, you must use a PostScript printer.


    Photoshop DCS 1.0 and 2.0 (Photoshop)

    --------------------------------------------------------------------------------

    Desktop Color Separations (DCS) format is a version of the standard EPS format that lets you save color separations of CMYK images. You can use DCS 2.0 format to export images containing spot channels. To print DCS files, you must use a PostScript printer.


    EPS TIFF or EPS PICT Preview (Photoshop)

    --------------------------------------------------------------------------------

    These formats let you open images saved in file formats that create previews but are not supported by Adobe Photoshop (such as QuarkXPress®). An opened preview image can be edited and used like any other low-resolution file. EPS PICT Preview is available only in Mac OS.

    Note: EPS TIFF format and EPS PICT format were more relevant for use in earlier versions of Photoshop. The current version of Photoshop includes rasterization features for opening files that include vector data.


    Filmstrip

    --------------------------------------------------------------------------------

    Filmstrip format is used for RGB animation or movie files created by Adobe Premiere®. If you resize, resample, remove alpha channels, or change the color mode or file format of a Filmstrip file in Photoshop, you won't be able to save it back to Filmstrip format. For further guidelines, see the Adobe Premiere User Guide.


    GIF

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    Graphics Interchange Format (GIF) is the file format commonly used to display indexed-color graphics and images in hypertext markup language (HTML) documents over the World Wide Web and other online services. GIF is an LZW-compressed format designed to minimize file size and electronic transfer time. GIF format preserves transparency in indexed-color images; however, it does not support alpha channels.


    JPEG

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    Joint Photographic Experts Group (JPEG) format is commonly used to display photographs and other continuous-tone images in hypertext markup language (HTML) documents over the World Wide Web and other online services. JPEG format supports CMYK, RGB, and Grayscale color modes, and does not support alpha channels. Unlike GIF format, JPEG retains all color information in an RGB image but compresses file size by selectively discarding data.

    A JPEG image is automatically decompressed when opened. A higher level of compression results in lower image quality, and a lower level of compression results in better image quality. In most cases, the Maximum quality option produces a result indistinguishable from the original.


    PCX

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    PCX format is commonly used by IBM PC-compatible computers. Most PC software supports version 5 of PCX format. A standard VGA color palette is used with version 3 files, which do not support custom color palettes.

    PCX format supports RGB, Indexed Color, Grayscale, and Bitmap color modes, and does not support alpha channels. PCX supports the RLE compression method. Images can have a bit depth of 1, 4, 8, or 24.


    PDF

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    Portable Document Format (PDF) is a flexible, cross-platform, cross-application file format. Based on the PostScript imaging model, PDF files accurately display and preserve fonts, page layouts, and both vector and bitmap graphics. In addition, PDF files can contain electronic document search and navigation features such as electronic links.

    Photoshop and ImageReady recognize two types of PDF files: Photoshop PDF files and Generic PDF files. You can open both types of PDF files; however, you can only save images to Photoshop PDF format.

    Photoshop PDF files

    Are created using the Photoshop Save As command. Photoshop PDF files can contain only a single image.

    Photoshop PDF format supports all of the color modes and features that are supported in standard Photoshop format. Photoshop PDF also supports JPEG and ZIP compression, except for Bitmap-mode images, which use CCITT Group 4 compression.

    Generic PDF files

    Are created using applications other than Photoshop, such as Adobe Acrobat and Adobe Illustrator, and can contain multiple pages and images. When you open a Generic PDF file, Photoshop rasterizes the image.



    PICT File

    --------------------------------------------------------------------------------

    PICT format is widely used among Mac OS graphics and page-layout applications as an intermediary file format for transferring images between applications. PICT format supports RGB images with a single alpha channel, and indexed-color, grayscale, and Bitmap-mode images without alpha channels. PICT format is especially effective at compressing images with large areas of solid color. This compression can be dramatic for alpha channels with their large areas of white and black.

    When saving an RGB image in PICT format, you can choose either a 16-bit or 32-bit pixel resolution. For a grayscale image, you can choose from 2, 4, or 8 bits per pixel. In Mac OS with QuickTime installed, four JPEG compression options are available.

    Note: In ImageReady, PICT format is supported in Mac OS only.


    PICT Resource

    --------------------------------------------------------------------------------

    (Mac OS) A PICT resource is a PICT file contained in a Mac OS file's resource fork--for example, an application's splash screen or the contents of the Scrapbook. PICT Resource format supports RGB images with a single alpha channel, and indexed-color, grayscale, and Bitmap-mode images without alpha channels.

    You can use the Import command or the Open command to open a PICT resource. When saving a file as a PICT resource, you can specify the resource ID and resource name. As with other PICT files, you also specify bit depth and compression options.


    Pixar

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    The Pixar format is designed specifically for high-end graphics applications, such as those used for rendering three-dimensional images and animation. Pixar format supports RGB and grayscale images with a single alpha channel.


    PNG

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    Developed as a patent-free alternative to GIF, Portable Network Graphics (PNG) format is used for lossless compression and for display of images on the World Wide Web. Unlike GIF, PNG supports 24-bit images and produces background transparency without jagged edges; however, some Web browsers do not support PNG images. PNG format supports RGB, indexed-color, grayscale, and Bitmap-mode images without alpha channels. PNG preserves transparency in grayscale and RGB images.


    QuickTime Movie (ImageReady)

    --------------------------------------------------------------------------------

    QuickTime Movie format is a cross-platform format used for time-based data, such as video and audio. In ImageReady, you can save animations as QuickTime movies and open existing QuickTime movies as animations in order to optimize them for the Web.

    Note: In Windows, QuickTime Movie format is visible in the Files of Type pop-up menu only when QuickTime is installed on your computer.


    Raw (Photoshop)

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    Raw format is a flexible file format for transferring images between applications and computer platforms. This format supports CMYK, RGB, and grayscale images with alpha channels, and multichannel and Lab images without alpha channels.

    Raw format consists of a stream of bytes describing the color information in the image. Each pixel is described in binary format, with 0 representing black and 255 white (for images with 16-bit channels, the white value is 65535). Adobe Photoshop designates the number of channels needed to describe the image, plus any additional channels in the image. You can specify the file extension (Windows), file type (Mac OS), file creator (Mac OS), and header information.

    In Mac OS, the file type is generally a four-character ID that identifies the file--for example, TEXT identifies the file as an ASCII text file. The file creator is also generally a four-character ID. Most Mac OS applications have a unique file creator ID that is registered with the Apple Computer Developer Services group.

    The header parameter specifies how many bytes of information appear in the file before actual image information begins. This value determines the number of zeroes inserted at the beginning of the file as placeholders. By default, there is no header (header size = 0). You can enter a header when you open the file in Raw format. You can also save the file without a header and then use a file-editing program, such as HEdit (Windows) or Norton Utilities® (Mac OS), to replace the zeroes with header information.

    You can save the image in an interleaved or noninterleaved format. If you choose interleaved, the color values (red, green, and blue, for example) are stored sequentially. Your choice depends on requirements of the application that will open the file.


    Scitex CT (Photoshop)

    --------------------------------------------------------------------------------

    Scitex Continuous Tone (CT) format is used for high-end image processing on Scitex computers. Contact Scitex to obtain utilities for transferring files saved in Scitex CT format to a Scitex system. Scitex CT format supports CMYK, RGB, and grayscale images and does not support alpha channels.

    CMYK images saved in Scitex CT format often have extremely large file sizes. These files are generated for input using a Scitex scanner. Images saved in Scitex CT format are printed to film using a Scitex rasterizing unit, which produces separations using a patented Scitex halftoning system. This system produces very few moiré patterns and is often demanded in professional color work--for example, ads in magazines.


    Targa

    --------------------------------------------------------------------------------

    TGA (Targa®) format is designed for systems using the Truevision® video board and is commonly supported by MS-DOS color applications. Targa format supports 16-bit RGB images (5 bits x 3 color channels, plus one unused bit), 24-bit RGB images (8 bits x 3 color channels), and 32-bit RGB images (8 bits x 3 color channels plus a single 8-bit alpha channel). Targa format also supports indexed-color and grayscale images without alpha channels. When saving an RGB image in this format, you can choose a pixel depth and select RLE encoding to compress the image.


    TIFF

    --------------------------------------------------------------------------------

    Tagged-Image File Format (TIFF) is used to exchange files between applications and computer platforms. TIFF is a flexible bitmap image format supported by virtually all paint, image-editing, and page-layout applications. Also, virtually all desktop scanners can produce TIFF images.

    TIFF format supports CMYK, RGB, Lab, indexed-color, and grayscale images with alpha channels and Bitmap-mode images without alpha channels. Photoshop can save layers in a TIFF file; however, if you open the file in another application, only the flattened image is visible. Photoshop can also save annotations, transparency, and multiresolution pyramid data in TIFF format.
    -------
    most of us will never do great things
    but we can do small things in a great way
    -------

  5. #5
    عضو متميز
    صور رمزية Shady3D
    تاريخ التسجيل
    Nov 2002
    المنطقة
    القـــاهرة - مــصـر
    ردود
    1,484
    70 زائر ولا رد

    وبعد كدا تشتكو من قلة الزوار هنا فى القسم وقلة المشاركين
    يعنى ايه المطلوب - خد وبس ؟ يناس شوفو المنتديات بتاعت الجرافيك مولعة نار برا - صح النوم .
    -------
    most of us will never do great things
    but we can do small things in a great way
    -------

  6. #6
    أخي zone_shady بارك الله فيك على هذه المعلومات القيمة
    لكن ماذا ستكون الاضافة في حين أن اجابتك جائت كاملة ووافية.

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