![]() ![]() Raster files display a wider array of colors, permit greater color editing, and show finer light and shading than vectors - but they lose image quality when resized. An easy way to tell if an image is raster or vector is to increase its size. If the image becomes blurred or pixelated, it’s most likely a raster file. The resolution of a raster file is referred to in DPI (dots per inch) or PPI (pixels per inch). If you zoom in or expand the size of a raster image, you start to see the individual pixels. One of the main differences between raster and vector files is their resolution. They represent images in very different ways, so there’s a lot to consider when deciding which one to use. Some of the main differences between raster and vector include: Raster and vector files are the two most popular formats used for visual content. ![]() What is the difference between raster and vector files? 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, you can scale a vector image up or down without impacting its quality. Raster files are images built from pixels - tiny color squares that, in great quantity, can form highly detailed images such as photographs. The more pixels an image has, the higher quality it will be, and vice versa. The number of pixels in an image depends on the file type (for example, JPEG, GIF, or PNG). Raster vs. vector files: frequently asked questions.What is the difference between raster and vector files?.Higher values, on the other hand, create a simpler composition, often ignoring smaller areas of color and combining them into adjacent colors for larger, single-color path areas. Lower values create many more paths, making the document more complex and more likely to choke a printer’s processor, but low values also increase the fidelity of the vector to the original raster image data. Minimum Area is the smallest path size desired. To avoid creating vector paths that look pixelated, increase the value of Path Fitting until the resulting paths are smooth, without losing crisp edges and color breaks. For example, a setting of 1 px on a low-resolution image will create vector paths that perfectly stair-step with the grid-based, square pixels. Path Fitting The control determines how closely the vector paths should match the edges of color areas in the source image. When Strokes is selected, the Max Stroke Weight and Min Stroke Length controls are activated providing the options for, respectively, the maximum thickness at which a stroke may be rendered before it’s converted to a fill area and the shortest length of object acceptable as a stroke. ![]() If you haven’t opened a library, your only choice will be Automatic, meaning Illustrator will build colors as needed depending on the Max Colors option.įills and Strokes, checkboxes under Trace Settings, determine whether to render vector objects as fills, strokes, or both. However, if you’ve opened a pre-set swatch library such as a Pantone or Toyo, that library will be listed too, enabling you to target all your tracing colors to fit within those in the library. Palette This pulldown menu says Automatic by default. For example, if you set Threshold to 200, all the image’s shades of gray that are 200 or higher (on a scale of 0-255), will be white in your black and white tracing all values lower than 200 will become black. You can enter a numerical value or use the slider bar that appears when you click the arrow on the right. Threshold If you chose the black and white mode, the Threshold field becomes active, allowing you to set the maximum grayscale value of white. Mode This pulldown menu lets you choose whether your image and/or the tracing you want is color, grayscale, or strictly black and white. ![]()
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