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  2. Cyanopsia - Wikipedia

    en.wikipedia.org/wiki/Cyanopsia

    This effect usually resolves as the eye adapts. Certain medications, such as sildenafil, can also induce cyanopsia by temporarily altering retinal function, medication management and adjustments can be made to fix the issue. Rarely, conditions affecting the retina or optic nerve can lead to cyanopsia, though these cases are less documented. [3]

  3. Computer vision syndrome - Wikipedia

    en.wikipedia.org/wiki/Computer_vision_syndrome

    Computer vision syndrome (CVS) is a condition resulting from focusing the eyes on a computer or other display device for protracted, uninterrupted periods of time and the eye's muscles being unable to recover from the constant tension required to maintain focus on a close object.

  4. Compression artifact - Wikipedia

    en.wikipedia.org/wiki/Compression_artifact

    Statistically, images have more low-frequency than high-frequency content, so it is the low-frequency content that remains after quantization, which results in blurry, low-resolution blocks. In the most extreme case only the DC-coefficient, that is the coefficient which represents the average color of a block, is retained, and the transform ...

  5. Visual snow syndrome - Wikipedia

    en.wikipedia.org/wiki/Visual_snow_syndrome

    Static and auras in vision, Palinopsia, Blue field entoptic phenomenon, Nyctalopia, Tinnitus: Complications: Poor quality of vision, Photophobia, Heliophobia, Depersonalization and Derealization [2] Usual onset: Visual Snow can appear at any time, but it commonly appears at birth, late teenage years, and early adulthood. Causes

  6. Command pattern - Wikipedia

    en.wikipedia.org/wiki/Command_pattern

    If the former command is added twice to an undo stack, both items on the stack refer to the same command instance. This may be appropriate when a command can always be undone the same way (e.g. move down). Both the Gang of Four and the Java example below use this interpretation of the term command. On the other hand, if the latter commands are ...

  7. Micropsia - Wikipedia

    en.wikipedia.org/wiki/Micropsia

    Micropsia is a condition affecting human visual perception in which objects are perceived to be smaller than they actually are. Micropsia can be caused by optical factors (such as wearing glasses), by distortion of images in the eye (such as optically, via swelling of the cornea or from changes in the shape of the retina such as from retinal edema, macular degeneration, or central serous ...

  8. Object detection - Wikipedia

    en.wikipedia.org/wiki/Object_detection

    Objects detected with OpenCV's Deep Neural Network module (dnn) by using a YOLOv3 model trained on COCO dataset capable to detect objects of 80 common classes. Object detection is a computer technology related to computer vision and image processing that deals with detecting instances of semantic objects of a certain class (such as humans, buildings, or cars) in digital images and videos. [1]

  9. Macropsia - Wikipedia

    en.wikipedia.org/wiki/Macropsia

    Dysmetropsia in one eye, a case of aniseikonia, can present with symptoms such as headaches, asthenopia, reading difficulties, depth perception problems, or double vision. [3] The visual distortion can cause uncorrelated images to stimulate corresponding retinal regions simultaneously impairing fusion of the images. Without suppression of one ...