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    AVP ch4

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    muhammed nurhusien
    The document discusses raster (bitmap) graphics and vector graphics. It provides examples of benefits and drawbacks of each type. Raster graphics store images as a collection of pixels and are simple to construct, allow changing individual pixels, and transform well to output devices. Vector graphics store images as lists of drawing commands and are smaller in file size, more scalable without quality loss, and have sharper lines. The document also lists some common raster and vector graphics file formats and software.

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    AVP ch4

    Uploaded by

    muhammed nurhusien
    25 views32 pages
    The document discusses raster (bitmap) graphics and vector graphics. It provides examples of benefits and drawbacks of each type. Raster graphics store images as a collection of pixels and are simple to construct, allow changing individual pixels, and transform well to output devices. Vector graphics store images as lists of drawing commands and are smaller in file size, more scalable without quality loss, and have sharper lines. The document also lists some common raster and vector graphics file formats and software.

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    The document discusses raster (bitmap) graphics and vector graphics. It provides examples of benefits and drawbacks of each type. Raster graphics store images as a collection of pixels and are simple to construct, allow changing individual pixels, and transform well to output devices. Vector graphics store images as lists of drawing commands and are smaller in file size, more scalable without quality loss, and have sharper lines. The document also lists some common raster and vector graphics file formats and software.

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    25 views32 pages

    AVP ch4

    Uploaded by

    muhammed nurhusien
    The document discusses raster (bitmap) graphics and vector graphics. It provides examples of benefits and drawbacks of each type. Raster graphics store images as a collection of pixels and are simple to construct, allow changing individual pixels, and transform well to output devices. Vector graphics store images as lists of drawing commands and are smaller in file size, more scalable without quality loss, and have sharper lines. The document also lists some common raster and vector graphics file formats and software.

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    of 32

    • For Example : An image generated by a high-resolution digital

    camera may also contain horizontal and vertical measurements


    of 4128 pixels and 3096 pixels, enabling the overall image to be
    4128 x 3096 = 12,780,288 pixels.
    • Each pixel describes standard pixel values for the picture at that
    level. (raster graphics typically require significant numbers of
    pixels, but devices are very adept at handling a large number of
    objects!).
    Benefits of Raster (Bitmap) Graphics

    • It is simple to construct raster files through existing pixel


    information stored in a sequence in memory space.
    • It is also possible to retrieve pixel information stored in a raster
    file while using a collection of coordinates that enables the
    information to be characterized in the grid form.
    • If available, pixel values can be changed separately or as huge
    sets by changing a gradient.
    • Raster graphics can transform well to external devices like
    CRTs and printers in spot-format.
    Vector
    The optimal key to build a digital picture is to compile a list of commands
    that explain how to depict the picture and then save the list as an image file.
    The machine perceives each command and redraws the full image while the
    file is opened, normally as a bitmap for demonstration purposes. This
    mechanism is called rasterization.

    Nowadays, vector images are usually placed in graphical file formats like
    SVG, EPS, PDF, or AI, which are inherently distinct from the more
    traditional raster image formats such as JPEG, PNG, APNG, GIF, and
    MPEG4.
    For Example- Corel Draw, Adobe Illustrator, etc.
    Benefits of Vector Graphics
    •Vector files are thin in size since they have less information than bitmap
    image files. 
    •Vector images are more versatile than bitmap graphics because the
    graphical fidelity can be increased up and down quickly without any loss.
    •Vector image files have sharper lines compared to rectangular, pixel-based
    bitmap graphics, so they are stronger than raster images with straight lines
    and flowing curves.
    Drawbacks of Vector Graphics
    •When a vector image has minor defects, these are shown when the vector
    image is greatly expanded.
    •A static color or gradient is usually loaded with vector images.
    Comprehensive picture (photo) attributes cannot be viewed as bitmap
    graphics.
    List of Software’s:

    • Adobe Photoshop.
    • Sketch.
    • Adobe Illustrator.
    • Lunacy.
    • Mega Creator.
    • Affinity Designer.
    • Adobe InDesign.
    • CorelDRAW Graphics Suite 2019.
    • Eagle.
    • Xara Designer Pro X
    • Gravit Designer
    • GIMP
    Image File formats
     It is a process applied to a graphics file to minimize its size in bytes
    without degrading image quality below an acceptable threshold.
     By reducing the file size, more images can be stored in a given amount
    of disk or memory space.
    Image Compression Model
    - uncompressed images captured by digital cameras and Scanners

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