公开(公告)号：US10140559B1

公开(公告)日：2018-11-27

申请号：US15795325

申请日：2017-10-27

Applicant: XEROX CORPORATION

Inventor： Arindam Das ,  Karthik Jakkala ,  Polisettyvrk Jyothendravarma

IPC: G06K15/02

Abstract: Methods and systems for printing clear tagged objects on clear plane are described herein. In an example, the system draws a bounding box for each block of text/graphic objects. Within each bounding box, an occupancy percentage of foreground pixels (tagged as clear objects) is computed against background pixels. If the computed occupancy percentage falls below a defined threshold value, then that text/graphic object is considered for application of dilation. Thus, the device described herein doesn't check the size of the text/graphic objects; rather checks for the occupancy percentage of the text/graphic objects within a bounding box. While constructing the clear plane to support flood clear, the clear values corresponding to the dilated pixels (pixels considered for dilation) will be intelligently modified. In this way, only intended and logically desired text/graphic objects undergo for dilation.

公开(公告)号：US10025539B2

公开(公告)日：2018-07-17

申请号：US15042593

申请日：2016-02-12

Applicant: Xerox Corporation

Inventor： Sankaralingam Madasamy ,  Arindam Das ,  Karthik Jakkala

IPC: G06K9/00 ,  G06F3/12 ,  G06T5/50 ,  H04N1/00

Abstract: Methods and systems for rendering an image. In an example embodiment, a step or operation can be implemented to pre-render white objects in an image with a background image set to a single complementary color. Such a single complimentary color assists in obtaining the textual content only from the complex background. A connected component analysis can be performed with respect to said image to identify elements in said images that should be rendered as objects composed of text and graphics. Tags are then assigned for final rendering of the image after performing said component analysis with respect to said image. Modification of tag values with respect to said images avoids unwanted artifacts such as, for example, bleed through, background closing, ghost effects, etc.

公开(公告)号：US20170235528A1

公开(公告)日：2017-08-17

申请号：US15042593

申请日：2016-02-12

Applicant: Xerox Corporation

Inventor： Sankaralingam Madasamy ,  Arindam Das ,  Karthik Jakkala

IPC: G06F3/12 ,  H04N1/00 ,  G06T5/50

CPC classification number: G06F3/1208 ,  G06F3/1211 ,  G06F3/1219 ,  G06F3/1248 ,  G06T5/50 ,  G06T2207/10024 ,  G06T2207/20224 ,  H04N1/00023

Abstract: Methods and systems for rendering an image. In an example embodiment, a step or operation can be implemented to pre-render white objects in an image with a background image set to a single complementary color. Such a single complimentary color assists in obtaining the textual content only from the complex background. A connected component analysis can be performed with respect to said image to identify elements in said images that should be rendered as objects composed of text and graphics. Tags are then assigned for final rendering of the image after performing said component analysis with respect to said image. Modification of tag values with respect to said images avoids unwanted artifacts such as, for example, bleed through, background closing, ghost effects, etc.