摘要:
A watermarked media signal (20) is transmarked to adapt the watermark to the robustness and perceptibility constraints of the new environment (34). A first watermark is detected (22) in the media signal and the message information from the first watermark is embedded into a second watermark (44), before the media signal undergoes a transformation process. The second watermark (44) is adapted to survive the transformation process. In addition, a watermark embedding command is included in a set of rendering commands used during the process of creating a media object to specify how the media object is to be rendered. The watermark embedding command includes an identifier used to link to customer or related content information, the customer's web site, the intensity at which to embed the watermark, areas not to embed, batch processing options, printing preferences for images, watermark embedding methods to use on different media types, formats or different parts of the media object, and desired rendering quality.
摘要:
A coding apparatus for embedding second data into first data without deterioration of the first data, and a decoding apparatus for decoding coded data in which first data is coded in accordance with second data are provided. The coding apparatus embeds the second data into the first data by interchanging at least one block of at least a part of the first data in units of bit planes in accordance with the second data. The decoding apparatus decodes the coded data into the first data by dividing at least a part of data in which the second data is embedded into blocks and by interchanging blocks in units of bit planes on the basis of correlations between bits within each bit plane of the block, and decodes the second data which is embedded into the coded data in accordance with the interchanging.
摘要:
A system quickly verifies that the content of an image has not been changed since an earlier time when the content of that image was stamped. The system consists of a stamping process that embeds stamping information into a source image and produces a verification key, and a verification process that extracts stamping information from a stamped source image based on the verification key. Furthermore, the verification process produces an image itself, from which the verification can be readily judged visually or by use of a computer or other display device. In the verification process, the changes in an image can be detected and localized. The image stamping process further includes an error diffusion process so that the effects of combining the stamping information with the original image are not readily perceptable. An image is safeguarded against malicious manipulations and the proprietary rights are protected by maintaining the integrity of the image content.
摘要:
The invention concerns a method by means of which figure-coded data units, for example texts in ASCII format, can be concealed in images. To this end, images are generated by means of a chaos function and the grey-scale values of those pixel values of the image which correspond to the ASCII values of the individual characters are modified.
摘要:
An image processing apparatus includes: an embed-data generating unit (1F2) configured to generate embed-data (DA) to be embedded in input-image-data (DIN), the input-image-data (DIN) representing an image including a first color, the embed-data (DA) representing an image including a second color; an inverting unit (1F3) configured to invert the image represented by the embed-data (DA), in response to meeting a predetermined condition relating to the first color and the second color; and an output-image-data generating unit (1F1) configured to embed, in the input-image-data (DIN), embed-data (DA) representing the image that is inverted by the inverting unit (1F3), in order to generate output-image-data (DOUT) in a case where the predetermined condition is met, and configured to embed, in the input-image-data (DIN), embed-data (DA) representing the image that is not inverted by the inverting unit (1F3), in order to generate output-image-data (DOUT) in a case where the predetermined condition is not met.
摘要:
There is provided an information processing apparatus comprising: a storage unit configured to store a plurality of process modules including a first process module for performing an embedding process by which information is embedded in image data; a setting unit configured to set a condition for performing the embedding process by the first process module; and a controlling unit configured to control a workflow in which one or more processes respectively performed by the process modules, including the first process module, are sequentially performed; wherein the first process module performs the embedding process under the set condition in response to detecting that image data input to the first process module in controlling the workflow is in a preset image format.
摘要:
An image creating apparatus has a printing device configured to print a changed image on a recording medium; a difficult-to-recognize color arrangement storage unit configured to store a difficult-to-recognize color arrangement that is difficult to visually recognize; an object extracting unit configured to extract objects from an original image; a difficult-to-recognize object detecting unit configured to detect a difficult-to-recognize object; a representative color obtaining unit configured to obtain the representative color of the difficult-to-recognize object; a color arrangement changing unit configured to (i) change the color arrangement of the image so that the color arrangement of the periphery is changed from the difficult-to-recognize color arrangement in at least part of the difficult-to-recognize object and (ii) embed information about the representative color as dots; and a changed image printing unit configured to command the printing device to print the changed image with the changed color arrangement.