PREPARING IMAGES FOR PRINT

1 . A method comprising:

comparing a length of an image with a threshold associated to a print device;

subdividing the image into a sequence of print frames, each print frame having length equal to or less than the threshold;

performing a stitching operation on at least two consecutive print frames;

controlling the print device to sequentially print the at least two stitched consecutive print frames on a substrate; and

moving the substrate according to a forward direction and a backward direction to align a subsequent print frame to a previous print frame.

2 . The method of claim 1 , further comprising marking a trailing edge of a previous print frame to align a subsequent print frame to the marked trailing edge.

3 . The method of claim 2 , further comprising controlling a position of the subsequent print frame according to the trailing edge mark by performing a timing control, a position control, or a laser beam position control.

4 . The method of claim 1 , wherein performing the stitching operation comprises performing a blending operation to stitch the at least two consecutive print frames.

5 . The method of claim 1 , further comprising defining overlapping portions of the two consecutive print frames,

wherein the stitching operation is performed to the overlapping portions; and

wherein controlling the print device comprises controlling the print device so as to at least partially superpose the overlapping portions during print.

6 . The method of claim 1 , further comprising adding print frames the image responsive to an addition of image portions to be printed.

7 . The method of claim 1 , further comprising analysing color values of pixels within the image.

8 . The method of claim 1 , further comprising performing a seam carving operation.

9 . A computer-readable storage medium which stores computer readable instructions which, when executed by the computer, cause the computer to:

manage a queue of print frames obtained from a plurality of images to be printed by a printer, each print frame having length equal to or less than a maximum length;

control a sequential print of the print frames on a substrate so that at least two consecutive print frames stitch with each other;

mark a trailing edge of a previous print frame to align a subsequent print frame to the marked trailing edge; and

control a position of the subsequent print frame according to the trailing edge mark by performing a timing control, a position control, or a laser beam position control.

10 . The computer-readable storage medium of claim 9 , wherein the computer readable instructions, which executed by the computer, further cause the computer to move the substrate according to a forward direction and a backward direction to align the subsequent print frame to the previous print frame.

11 . A system to:

subdivide an input image, to be printed by a print device according to a format associated to a length threshold, into a sequence of frames so that each frame has length equal to or less than the length threshold;

process the frames so as to modify boundary regions of two adjacent frames;

command a sequential print of the frames on a substrate so that the boundary regions are superposed to each other; and

move the substrate according to a forward direction and a backward direction to align a subsequent frame to a previous frame.

12 . The system of claim 11 , wherein the system is further to compose the input image from a plurality of images to be printed.

13 . The system of claim 11 , further comprising a drum-type printer or a belt-type printer.

14 . The system of claim 11 , wherein the system is to mark a trailing edge of the previous frame so that a sensor detects the marked trailing edge to perform an alignment of the previous frame to the subsequent frame.

15 . The system of claim 14 , wherein the system is to control a position of the subsequent frame according to the trailing edge mark by performing a timing control, a position control, or a laser beam position control.

16 . The system of claim 11 , further comprising a page composition system to re-impose virtual print frames onto physical print frames.