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Questions and Answers
What is the representation of a digital image I(r, c) as per the given text?
How many different brightness levels can a typical gray scale image contain?
What is the characteristic of a binary image?
How can a color image be modeled?
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What type of information is stored in the digital image data of a monochrome image?
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In linear algebra terms, what is a two-dimensional array like a digital image model referred to as?
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Which image file format is recommended for high quality prints, professional publications, and archival copies?
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What type of compression is used in BMP files?
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Which image file format is best suited for web graphics due to its ability to be animated and to save transparency?
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What does the acronym JPEG stand for?
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How many colors are GIF files limited to?
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Which image file format is known for being ideal for web use and non-professional prints?
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Which image file format is developed by Microsoft for Windows?
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What does the acronym TIFF stand for?
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Which image file format allows for very high-quality images but also larger file sizes?
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Study Notes
Digital Image Representation
- A digital image I(r, c) is represented as a 2D array of intensity values, where r and c denote the row and column indices respectively.
Gray Scale Image
- A typical gray scale image can contain 256 different brightness levels, or 2^8 levels.
Binary Image
- A binary image is a digital image that can have only two intensity values, typically represented by 0 (black) and 255 (white).
Color Image Modeling
- A color image can be modeled as a combination of three 2D arrays, one for each primary color (red, green, and blue).
Monochrome Image Data
- The digital image data of a monochrome image stores intensity values, representing the brightness of each pixel.
Linear Algebra Representation
- A two-dimensional array like a digital image is referred to as a matrix in linear algebra terms.
Image File Formats
- TIFF (Tagged Image File Format) is recommended for high-quality prints, professional publications, and archival copies.
- BMP (Bitmap) files use uncompressed raster image format, which results in large file sizes.
- GIF (Graphics Interchange Format) is best suited for web graphics due to its ability to be animated and to save transparency.
- JPEG (Joint Photographic Experts Group) is a compressed image format that reduces the file size by selectively discarding some of the data.
GIF File Limitations
- GIF files are limited to 8-bit color, which means they can display up to 256 different colors.
JPEG File Suitability
- JPEG files are suitable for web use and non-professional prints.
Windows Image File Format
- WDP (Windows Media Photo) is an image file format developed by Microsoft for Windows.
TIFF Characteristics
- TIFF is known for allowing very high-quality images, but also resulting in larger file sizes.
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Description
Explore the fundamentals of digital image processing and analysis, including the representation of images as two-dimensional arrays of data and the concept of binary images. Learn about matrix representation and the characteristics of binary images.
