Abstract: A method including receiving an image targeted for compression into a compressed image, identifying a coding line including a plurality of elements, each of the plurality of elements having a color, selecting an element from the plurality of elements from the coding line in the image, determining a presented color associated with the selected element, comparing the presented color to an expected color, and in response to determining the presented color is not the expected color inserting a marker into a data structure representing a portion of the compressed image, the marker indicating that the presented color is not the expected color, determining an encoding value corresponding to the presented color, and inserting the encoding value into the data structure representing the compressed image.

Abstract: A method includes selecting, from an image, a target block of pixels to be compressed, selecting a neighbor column of the target block, selecting a neighbor row of the target block, generating two or more basis values based on at least one of a portion of pixels of the neighbor column and a portion of pixels of the neighbor row, calculating a gradient based on the two or more basis values, and assigning at least one predictor for the target block using the calculated gradient.

Abstract: A method includes selecting, from an image, a target block of pixels to be compressed, selecting a neighbor column of the target block, selecting a neighbor row of the target block, generating two or more basis values based on at least one of a portion of pixels of the neighbor column and a portion of pixels of the neighbor row, calculating a gradient based on the two or more basis values, and assigning at least one predictor for the target block using the calculated gradient.