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Image File File FIle FIle FIle Formats.pptx
- 1.
- 2. What is themost popular image file format?
- 3. Understanding image filetypes is essential for selecting the format that best fits your needs, as each has unique strengths and weaknesses in terms of image quality, file size, and editability.
- 4. Different image fileformats exist because each is optimized for specific purposes, balancing factors such as image quality, file size, compression, and how they’re used across different devices or platforms.
- 5. Raster image filesvs. Vector files
- 6. Raster image files Rasterimages are composed of a grid of pixels, with the resolution of the image defined by pixels per inch (PPI) or dots per inch (DPI).
- 7. Since the resolutionis defined by the number of pixels and dimensions, scaling the image beyond the original dimensions will result in a loss of quality, often referred to as pixelation.
- 8. Raster images arecommonly used for web graphics, print media, and digital photography. Common raster image file types include JPEG, PNG, GIF, and BMP.
- 9. Vector image files Bycontrast, vector images are defined by a mathematical formula, allowing the image to be scaled without losing quality.
- 10. This flexibility makesvector images ideal for graphics and logos that may need to be resized to fit a variety of applications. Common vector image types include SVG, EPS, AI, and PDF.
- 11.
- 12. JPEG JPEG (Joint PhotographicExperts Group) is a widely used image file format that offers flexibility in terms of quality and file size. You may also see the file extension JPG, which is the identical format as JPEG.
- 13. Pros: • High compression:JPEGs enable excellent compression that can significantly reduce file sizes, making them ideal for web use to reduce load times. Sharing the smaller JPEG files can often be easier as compared to other formats.
- 14. • Compatibility: JPEGsare widely supported across web browsers, image editors, and image viewers.
- 15. Cons: • Lossy compression:The removal of some data from the original image during compression results in the degradation of image quality. The degradation can be further compounded if the JPEG is compressed multiple times.
- 16. • Transparency: JPEGsdo not support transparent backgrounds, which can make the format unfit for some use cases like logos.
- 17. PNG • A PNG(Portable Network Graphics) is a lossless raster image file. By being lossless, the PNG format requires a tradeoff between quality and file size.
- 18. Pros: • Lossless compression:The data and quality of the original image are retained during compression, making it ideal for sharper, more detailed graphics.
- 19. Transparency: PNGs supportalpha transparency, enabling images to have a transparent background, making this format well suited for logos and graphics that require layering.
- 20. Cons: • File size:PNG files are typically larger due to the nature of lossless compression. The larger file size can increase load times for websites utilizing the format.
- 21. Colors: PNGs supportonly RBG color profiles and do not support CMYK profiles commonly used in printing. When a PNG is printed using a CMYK profile, some of the colors may change unexpectedly.
- 22. GIF When working withanimated images, one of the most commonly used formats is GIF. GIF supports lossless compression, but it has a limited color palette of 256 colors, which restricts its use for complex or highly detailed images.
- 23. • because ofits simplicity and support for animation, it’s frequently used for short clips, memes, and web-based visuals. GIF is supported by web browsers, making it easy to integrate into websites for quick, attention- grabbing animations.
- 25. Pros: • Animation: GIFfiles support simple animations commonly used to create looping animations or clips, made widely popular on social media.
- 26. Small file size:GIFs have a relatively small file size because they are restricted to only 256 simultaneous colors. The small size of GIFs allows them to be used on web pages without significantly slowing down load times.
- 27. Cons: • Colors: GIFsare restricted to 256 simultaneous colors, resulting in detailed images losing quality.
- 28. Longer animations: WhileGIFs have a relatively small file size, longer animations can become larger in size, which can extend page loading times.
- 29. TIFF TIFF (Tagged ImageFile Format) is a preferred file format for high resolution printing, artwork, and photography due to the prioritization of quality.
- 30. Pros: • Quality: TIFFis a lossless file type that retains the original image’s quality without data loss, making it ideal for very detailed applications.
- 31. Pros: • Color support:Supports a variety of color profiles, including RGB, CMYK, indexed color, LAB, and grayscale, amongst others. TIFF also supports color depth up to 32 bits.
- 32. Cons: • File Size:The tradeoff for extremely high quality is very large file sizes compared to other image file types. • Web support: TIFF files are ill-suited for use on the web because their large size leads to slow loading times.