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  2. Optical character recognition - Wikipedia

    en.wikipedia.org/wiki/Optical_character_recognition

    Optical character recognition or optical character reader ( OCR) is the electronic or mechanical conversion of images of typed, handwritten or printed text into machine-encoded text, whether from a scanned document, a photo of a document, a scene photo (for example the text on signs and billboards in a landscape photo) or from subtitle text ...

  3. Steganography - Wikipedia

    en.wikipedia.org/wiki/Steganography

    In computing/electronic contexts, a computer file, message, image, or video is concealed within another file, message, image, or video. The word steganography comes from Greek steganographia, which combines the words steganós ( στεγανός ), meaning "covered or concealed", and -graphia ( γραφή) meaning "writing". [ 1]

  4. Image analysis - Wikipedia

    en.wikipedia.org/wiki/Image_analysis

    Image analysis. Image analysis or imagery analysis is the extraction of meaningful information from images; mainly from digital images by means of digital image processing techniques. [1] Image analysis tasks can be as simple as reading bar coded tags or as sophisticated as identifying a person from their face .

  5. Chicory - Wikipedia

    en.wikipedia.org/wiki/Chicory

    Botanical illustration (1885) Common chicory ( Cichorium intybus) [ 3] is a somewhat woody, perennial herbaceous plant of the family Asteraceae, usually with bright blue flowers, rarely white or pink. Native to Europe, it has been introduced to the Americas and Australia. [ 4] Many varieties are cultivated for salad leaves, chicons ( blanched ...

  6. Bag-of-words model in computer vision - Wikipedia

    en.wikipedia.org/wiki/Bag-of-words_model_in...

    In computer vision, the bag-of-words model (BoW model) sometimes called bag-of-visual-words model [1] [2] can be applied to image classification or retrieval, by treating image features as words. In document classification, a bag of words is a sparse vector of occurrence counts of words; that is, a sparse histogram over the vocabulary.

  7. Computer vision - Wikipedia

    en.wikipedia.org/wiki/Computer_vision

    As a scientific discipline, computer vision is concerned with the theory behind artificial systems that extract information from images. The image data can take many forms, such as video sequences, views from multiple cameras, or multi-dimensional data from a medical scanner. [ 9]

  8. Visual Word - Wikipedia

    en.wikipedia.org/wiki/Visual_Word

    Consider that the pixels of an image, which are the smallest parts of a digital image and cannot be divided into smaller ones, are like the letters of an alphabetical language. Then, a set of pixels in an image (a patch or arrays of pixels) is a word. Each word can then be reprocessed into a morphological system to extract a term related to ...

  9. Withania somnifera - Wikipedia

    en.wikipedia.org/wiki/Withania_somnifera

    Withania obtusifolia Täckh. Withania sicula Lojac. Withania somnifera, known commonly as ashwagandha[ 2][ 3][ 4] is an evergreen shrub in the Solanaceae or nightshade family that grows in India, the Middle East, and parts of Africa. Several other species in the genus Withania are morphologically similar.

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