A technology that enables accurate position specification on an image displayed on a screen to perform processing and correction of the image data is provided. When the image is printed on a sheet on which a dot pattern is printed, a reference point of the image on the display device is set and the reference point is printed in a visible mark together with the image. This mark is imaged with an imaging means, and calibration is performed in which position coordinates of the marks on the sheet and the reference points of the image are matched, thereby preventing variation in coordinates between designation made on the sheet with the imaging means and processing on the image.

A computerized method for authenticating documents having VIZ sections, the method comprising capturing an image of a document to be authenticated from a scanner and enhancing the captured image, and using a processor for identifying and cropping a VIZ section in the image.

An image capturing device is provided comprising an image sensor for capturing a first image of a scene, a light source for illuminating the scene with a first flash of coded light, and a network interface for communicating with a communications network and/or a further image capturing device. The device is operative to encode information into the first flash, enabling retrieval of the first image from a first data storage, capture the first image, and store the first image in the first data storage. Optionally, the device may be operative to detect a second flash of coded light emitted by the further image capturing device, decode information enabling retrieval of a second image captured by the further image capturing device from a second data storage, retrieve the second image, and create a 3D model from the first image and the second image.

The present disclosure relates generally to digital watermarking for spot colors. In one implementation a substitute spot color+CMY tint is selected to replace an original spot color. The CMY tint can be transformed to carry a digital watermark signal. Of course, other features, combinations and technology are described herein.

A system for preventing restricted transactions using physical trade documents includes a document intake machine comprising a document scanner and a data extractor. The document intake machine receives a physical trade document associated with a transaction of goods from an entity. The document scanner scans the physical trade document to create an electronic file. The data extractor identifies trade terms from the electronic file. A trade-executing machine receives the trade terms and compares them to a database of restricted trade terms. For each of the trade terms that match a restricted trade term, the trade executing machines identifies a confidence level associated with the trade term indicating a likelihood that the transaction of goods is a restricted transaction. If the confidence level is greater than a predetermined threshold, the trade executing machine flags the transaction of goods as a potential restricted transaction and communicates a notification message to the entity.

An image processing apparatus for embedding additional information in an image having a plurality of pixels and image information. A generating unit generates (a) the additional information to be embedded and (b) a bookbinding type of a medium containing the image. A holding unit holds a plurality of quantization conditions for embedding the additional information, including a quantization threshold. A selection unit segments the image into a plurality of embedding regions, and selects a condition to use in quantization based on the image information. A quantization condition control unit controls at least one of the plurality of quantization conditions for a predetermined region of the image based on the bookbinding type generated. An error diffusion processing unit distributes an error to peripheral pixels of a target pixel. A separating unit separates the embedded additional information from the image.

The present invention relates to an operation method for executing games on mobile camera enabled terminal devices and to devices capable of executing the method. The method is based on hiding augmented reality messages in pictures by taking an image of an object, providing symbols; linking the symbols to the image, such that the symbols are not visible when displaying the image, and sending the image and the linked invisible symbols via a wireless connection as a first image to a mobile camera terminal device. The invention also provides a second component to re-visualize the hidden message by receiving the first image, taking a second image with a camera of the mobile camera terminal device, displaying the second image, comparing the first and second images to determine a matching measure, and visibly displaying the linked invisible symbols on the display, if the comparison fulfills at least one predetermined condition.

A computerized method for authenticating documents having VIZ sections, the method comprising capturing an image of a document to be authenticated from a scanner and enhancing the captured image, and using a processor for identifying and cropping a VIZ section in the image.

This patent document relates generally to encoded information and digital watermarking. One claim recites an image capture device comprising: an optical system; an image sensor on a substrate for capturing imagery provided by the optical system, in which captured imagery includes encoded information, and in which the captured imagery comprises first color information, second color information and third color information; means for compressing the captured imagery captured by said image sensor; means for detecting the encoded information from the captured imagery, in which said detecting utilizes different color information weightings so that at least the first color information and the third color information are weighted differently than one another for detection of the encoded information; and means for providing the encoded information for output or display, once the encoded information is detected. Of course, other claims and combinations are provided as well.

A document verification system may verify modification to a physical document through digital image processing. Imaging sensors capture images of a modified physical document. A digital image processing circuit measures pixel parameters for a plurality of regions of the digital images for comparison to a verification pattern to verify the document.