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It s possible to take resolution-dependent bitmap images and make them larger, artificially increasing the size (and the saved file size) of the final image However, you can t do this directly in CorelDRAW by dragging a selection handle, and you probably shouldn t once you discover the way When a computer application is commanded to add pixels to an image, it has no real way of telling what color pixels should be added to the photograph Not CorelDRAW, not Adobe Photoshop, no application except those lame forensic computers you see on TV can intelligently, artistically, or accurately add, for example, detail to a photo of a mailbox so the address instantly becomes crisp and legible What you get when you perform any make this photo larger command is fake resolution ; the program averages pixel colors neighboring the original pixels to create more, similarly colored pixels This can often lead to artifacting, what we commonly describe as there s some junk in the upper left of this photo near my aunt s face Artifacting can be introduced to a digital photograph at any stage of photography: your camera didn t write the file correctly, the image became corrupted when you copied it to your hard drive, and/or you tried to enlarge a resolution-dependent image The cure for the last reason here is, don t resample important images; instead, print a copy of the image at its original size and see how it looks From there, increase its size, check for visible artifacts in your print, and if there s visible corruption, go back to your original or seriously consider reshooting the image One of the methods CorelDRAW, PHOTO-PAINT, and other programs that can import bitmaps use to lessen and occasionally eliminate visible artifacting from resampling a photo is called anti-aliasing, and you have some control over this method, discussed later in this chapter Anti-aliasing is a math calculation that performs averaging in a resulting photo that s been altered in areas where there is visual ambiguity (some of the pesky pixels are traveling under an alias) For example, suppose you could photograph a checkerboard plane that extends from your feet way out to the horizon You look down toward your feet and clearly see black squares and white squares You look at the horizon, and you do not see clear edges of the black and white squares: actually you ll see a lot of gray, as your mind blends black and white together because your eyes don t have photoreceptors fine enough to resolve the very distant black and white squares Similarly, our computers cannot reconcile black and white areas in a digital image that are smaller than the size of the pixels in the image, so when you resample the image, they create inaccurately little black and white squares where they shouldn t be The inaccuracy means the black and white squares are traveling as an alias and presenting themselves falsely (Continued). asp.net core ocrMar 6, 2019 · NET OCR Library for C#/VB.NET/WinForms/ASP.NET applications. Recognize and extract text from images JPG, JPEG, TIF, TIFF, PNG, BMP ... asp.net core ocrYou should try Tesseract for OCR. https://www.c-sharpcorner.com/article/ocr-using-tesseract-in-C-Sharp/. Anti-aliasing comes to the designer s rescue by averaging pixel colors when you resample such a checkerboard photo, or any photo The anti-aliasing technique examines, in this example, areas that include both a white square and a black one, understands that both colors can t be assigned to only one pixel, and so writes a blend of colors gray to the new pixel color value At left in this illustration, you can see some unwanted patterning toward the horizon this image was not anti-aliased when it was resampled to produce a larger image At right, the same image was resampled using anti-aliasing; at 1:1 viewing, you can see the smooth transition as the checkerboard extends into the distance and the close-up shows the result of good anti-aliasing (some applications anti-alias poorly) gray is substituted for black and white when it s Aliased image Anti-aliased image a toss up for a single pixel color excel 2010 code 128 font, print barcode in crystal report vb.net, vb.net barcode scanner source code, c# pdf 417 reader, vb.net code 39 reader, ssrs fixed data matrix .net core pdf ocrMay 7, 2019 · Tesseract is an optical character recognition engine, one of the most accurate OCR engines at present. 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C# OCR ASP. .net core ocr libraryA .Net wrapper for tesseract-ocr. Contribute to antoniocorreia/Tesseract.NETCore development by creating an account on GitHub. technique to combine two photos We ll drop out the plane s background by making it transparent, and then slip a second photo on a new layer under the plane To drop out the background, as shown in Figure 5-5, from the menu choose Select | Inverse to switch the selection from the plane to the background Choose the Eraser from the Toolbar and on the Options bar, select a large brush size for the eraser and set Opacity to 100 percent Sweep the selected background with the tool Don t worry about the foreground; the eraser will affect only the selected area Within the selection, each sweep of the eraser replaces the image with a checkerboard pattern that indicates that that area is transparent .net core pdf ocrNET Core) code shows how to use the PDFTron OCR module on scanned documents in multiple languages. ... 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