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What is the Difference between a Vector or Raster File ?
- T-Shirts Etc. West Houston
- Jan 18, 2023
- 4 min read
Updated: Jan 4, 2024
Image courtesy of : 99designs.com
Vector image/s OR. Raster image/s
Digital image files, categorized as one of two types: raster or vector. The main difference is how the image is built, that is either from pixels (raster) or a mathematical grid (vector)
Vector File Image
Vector files use mathematical equations, lines, and curves with fixed points on a grid to produce an image. There are no pixels in a vector file. A vector file’s mathematical formulas capture shape, border, and fill color to build an image. Because the mathematical formula recalibrates to any size, a vector image can be scaled up or down without impacting its quality.
Use: Because the resolution of vectors remains the same when resized, this makes them suitable for a wide variety of printed formats.
Some projects combine both raster and vector images. For example, a brochure may use vector graphics for the company logo but raster files for photography.
Raster File Image
Raster file is created by pixels which is/are tiny, individual colored dots that form the details of images or photos. The higher number of pixels an image has, the better the quality of the image. These type of files are well-suited for product photography because of their high quality and workability. They are flexible to edit and manipulate as the pixels themselves can be edited. However, the disadvantage to this file type is that when resizing the resolution can be affected and cause pixilation and blurriness.
Use: Digital uses are usually raster files for example the images you see online are often raster. They are also are commonly used for editing images, photos, and graphics.
File Extensions
Vector File Types
File Type | Extension |
Scalable Vector Graphics (SVG) | svg |
Encapsulated PostScript File (EPS) | .eps |
Raster File Types
File Type | Extensions |
Joint Photographic Experts Group (JPEG) | .jpg |
Portable Network Graphics (PNG) | .png |
Graphics Interchange Format (GIF) | .gif |
Bitmap Image File (BMP) | .bmp |
Tagged Image File Format (TIFF) | .tiff |
Adobe Photo Shop (PSD) | .psd |
Frequently Asked Questions
How do you know if an image is a vector? Enlarge an image to a scale of around 200% using your desktop or phone screen. You’ll know it’s a vector image if the resolution stays intact, with clean edges and solid colors. If the image gets pixelated, it’s most likely a raster file.
Another way of knowing if it is a vector is by the file extension - like if any of those listed above.
Is a PDF a raster or vector? It depends on the program used to create the document because PDFs can also be saved as raster files as well as a vector file. For example, any PDF created using Adobe Photoshop will be saved as a raster file.
Color models
A color model is a system used to describe a color. For example with Red, Green and Blue (RGB) elements or Cyan, Magenta, Yellow and Black (CMYK). It also determines how the colors and hues in an image appear on different screens.
When choosing a color model for your image/logo, you need to know your file type and whether your images will be digital or printed.
CMYK: for printed product images
CMYK (cyan, magenta, yellow, and black) color model is best for when printing. As the printer prints a photograph, the machine combines the colors to create the preferred color.
RGB: for digital product images
RGB (red, green, and blue) color model is ideal for any images/logos digitally on a screen. RGB uses the light source from the screen to manipulate color saturation, vibrancy, and shading
Same image in two color models - you can see the shift in colors from one model to the other. -- Some are more obvious and different than others.
Banana Cream Cheese Pie
"Whenever I make this banana cream cheese pie topped with a thick strawberry sauce, everyone looks forward to dessert. The recipe was taught and passed on to me by my mother-in-law, Ms Safia Sulemanji." — Zahra Sulemanji, Houston, Texas
This recipe was chosen and published in the Taste of Home
Photo courtesy by: Taste Of Home
Ingredients
1 package (8 ounces) cream cheese softened ½ cup sugar (white or brown) and/ or to taste 1 cup mashed ripe bananas (2 to 3 medium) 1 teaspoon lemon juice 1 teaspoon zest of a lemon 1 carton (8 ounces) whipping cream 1 graham cracker crust (9 inches) Strawberry topping 2-tablespoon sugar 1 tsp cornstarch 1-1/4 cups sliced fresh/frozen strawberries or any to individual liking A few drops of lemon if desired and to taste In a bowl, beat cream cheese and sugar until smooth. Combine bananas, lemon juice, lemon zest; add to cream cheese mixture. Fold in whipped topping. Pour into crust. Cover and refrigerate for 1 hour or until set. In a saucepan, combine sugar and cornstarch. Stir in strawberries or berries of your choice. Bring to a boil. Reduce heat; cook and stir for 2 minutes or until thickened. Drop in a few drops of lemon if desired and to taste. Optional: run thru a blender to form a consistent sauce. Cool. Drizzle some over pie. Cut into wedges; serve with remaining topping. Yields 6-8 servings
Nutrition Facts
1 slice: 378 calories, 20g fat (12g saturated fat), 31mg cholesterol, 206mg sodium, 45g carbohydrate (35g sugars, 2g fiber), 3g protein.
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T-Shirts Etc. is a full-service corporate clothing suppliers, offering a variety of men's and women's custom printed and embroidered corporate apparel, along with other specialty promotional items, gifts, and merchandise to choose from.
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