2. The method according to claim 1 , comprising displaying the captured image, and f) digital image filtering of the captured image including contrast enhancement, shadow compensation, unwarping and rotation of the captured image in order to obtain an artifact reduced image with a substantially horizontal text alignment, wherein the detection of the plurality of word blocks is based on the artifact reduced image; g) performing OCR within each word block to get its text content; h) assigning to each A-block an attribute; i) indicating the A-blocks in the display by a frame or a background color and displaying their attributes as overlays within the artifact reduced and displayed image for the selection of the keyword; j) the selection of the A-block containing the keyword being based on the displayed attribute of the keyword; and k) upon the selection of the A-block, displaying the text content of the selected A-block.
2. The method according to claim 1 , comprising displaying the captured image, and f) digital image filtering of the captured image including contrast enhancement, shadow compensation, unwarping and rotation of the captured image in order to obtain an artifact reduced image with a substantially horizontal text alignment, wherein the detection of the plurality of word blocks is based on the artifact reduced image; g) performing OCR within each word block to get its text content; h) assigning to each A-block an attribute; i) indicating the A-blocks in the display by a frame or a background color and displaying their attributes as overlays within the artifact reduced and displayed image for the selection of the keyword; j) the selection of the A-block containing the keyword being based on the displayed attribute of the keyword; and k) upon the selection of the A-block, displaying the text content of the selected A-block. 14. The method according to claim 2 , wherein within (d) the keyword probability determination rule detects in particular phone numbers within the artifact reduced image as possible keywords for the selection thereof.