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Hinting expert Beat Stamm, who worked on ClearType at Microsoft, [10] agrees that ClearType may look blurry at 96 dpi, which was a typical [11] resolution for LCDs in 2008, but adds that higher resolution displays improve on this aspect: "WPF [Windows Presentation Foundation] uses method C [ClearType with fractional pixel positioning [12]], but ...
Void pantographs work by exploiting the limitations and features of copying equipment. A scanner or photocopier will act as a low-pass filter on the original image, blurring edges slightly. It will also not be perfectly aligned with the directions of the document, causing aliasing. Features smaller than the resolution will also not be reproduced.
Saccadic masking, also known as (visual) saccadic suppression, is the phenomenon in visual perception where the brain selectively blocks visual processing during eye movements in such a way that neither the motion of the eye (and subsequent motion blur of the image) nor the gap in visual perception is noticeable to the viewer.
Another type of watermark is called the cylinder mould watermark. It is a shaded watermark first used in 1848 that incorporates tonal depth and creates a greyscale image. Instead of using a wire covering for the dandy roll, the shaded watermark is created by areas of relief on the roll's own surface.
Digital watermarking, a technique to embed data in digital audio, images or video . Audio watermark, techniques for embedding hidden information into audio signals; Watermark (data file), a method for ensuring data integrity which combines aspects of data hashing and digital watermarking
In image processing, a kernel, convolution matrix, or mask is a small matrix used for blurring, sharpening, embossing, edge detection, and more.This is accomplished by doing a convolution between the kernel and an image.
A digital watermark is called semi-fragile if it resists benign transformations, but fails detection after malignant transformations. Semi-fragile watermarks commonly are used to detect malignant transformations. A digital watermark is called robust if it resists a designated class of transformations. Robust watermarks may be used in copy ...
Images can be compressed with options for insertion into documents, email, or web pages. [16] After editing, users can view or discard unsaved changes, overwrite the original image, rename and save the new image, or export it to another location. Users can also share images in email, to an intranet location, or to a SharePoint library. [7]
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