Determining the direction of rows of text

A computing apparatus comprising:

• a memory to store instructions;
• and
• a processing device, operatively coupled to the memory, to execute the instructions, wherein the processing device is to:
• receive, by a processing device, an image of a document;
• transform the image to a binarized image by performing a binarization operation on the image;
• identify a portion of the binarized image that comprises one or more rows of textual content;
• identify a plurality of horizontal runs of white pixels in the one or more rows of textual content in the portion of the binarized image, and a plurality of vertical runs of white pixels in the one or more rows of textual content in the portion of the binarized image;
• generate a first histogram for the plurality of horizontal runs of white pixels, and a second histogram for the plurality of vertical runs of white pixels;
• and
• determine, by the processing device, an orientation of the one or more rows of textual content in the image based on the first histogram and the second histogram.

A non-transitory computer readable storage medium, having instructions stored therein, which when executed by a processing device of a computer system, cause the processing device to perform operations comprising:

• receiving, by a processing device, an image of a document;
• transforming the image to a binarized image by performing a binarization operation on the image;
• identifying a portion of the binarized image that comprises one or more rows of textual content;
• identifying a plurality of horizontal runs of white pixels in the one or more rows of textual content in the portion of the binarized image, and a plurality of vertical runs of white pixels in the one or more rows of textual content in the portion of the binarized image;
• generating a first histogram for the plurality of horizontal runs of white pixels, and a second histogram for the plurality of vertical runs of white pixels;
• and
• determining, by the processing device, an orientation of the one or more rows of textual content in the image based on the first histogram and the second histogram.