An image capturing device may capture image data for processing to form an image. The image capturing device may perform a hashing procedure on the image data, wherein performing the hashing procedure generates a hash value of the image data. The image capturing device may provide, to an image authentication device, the hash value of the image data, wherein the hash value of the image data is to be used by the image authentication device to validate the image based on a request to authenticate the image received from a receiving device. The image capturing device may process the image data to form the image for display to a user. The image capturing device may provide, after providing the hash value of the image data to the image authentication device, the image for display to the user.

Computer implemented method for generating a hash value (110) is disclosed, the method comprises the following steps: i) Providing a first digital RGB image (112) having first RGB colors of a physical object (114); ii) Combining first transaction data (116) and the first digital RGB image (112), thereby generating a second RGB image (118) having second RGB colors; iii) Converting (128) color values of the second RGB image (118) from RGB color space (130) to a secondary color space (132) having at least four primary colors and determining (134) a number of respectively colored pixels for each primary color of the secondary color space (132); iv) Generating (136) the hash value (110) by converting the determined number of respectively colored pixels for each primary color of the secondary color space (132) to hexadecimal numerals.

An image forming system includes an image forming apparatus and a terminal device. The terminal device converts a document into first print data, generates a second hash value corresponding to second object data in first print data, generates second print data, when the second hash value accords with the first hash value in a first storage device, by substituting the second object data in the first print data with the first hash value, and transmits the second print data to the image forming apparatus. The image forming apparatus substitutes, upon receipt of the second print data, the first hash value included in the second print data with the first object data corresponding to the first hash value and stored in the second storage device, generates second bitmap data by analyzing the second print data subjected to the substitution, and causes an image forming device to execute a printing operation.

Embodiments of the present application relate to the field of display driving technology, and disclose a method, an apparatus, an electronic device and a storage medium for processing pixel data. The method comprises: acquiring first image parameters of a first image unit and second image parameters of a second image unit, wherein the first image unit includes pixel data, of a first image, which is located on a first horizontal line, the second image unit includes pixel data, of a second image, which is located on the first horizontal line, and the second image is a previous frame of the first image; and updating the pixel data of the first image unit when the first image parameters do not match the second image parameters. The embodiments of the present application solve the problem of high driving power consumption in the process of outputting screens of the display panel in the prior art.

Embodiments described herein provide a computer-implemented method of creating a digest of a document. The document to be processed and analysed may be a physical document, or it may already be in a digital form. In the case of starting from a physical document, the document is first scanned, so as to obtain an image of the document. The digital document is then processed using an algorithm or function to obtain one or more datasets comprising a plurality of position independent values. Each of the datasets may correspond to a different line of text or field of text within the document. The one or more datasets are then encoded, the encoded data being used to generate a digest associated with the document, and wherein the digest comprises a plurality of short hashes corresponding to each dataset. The generated digest can then be used to print a digital signature on the document, which can be used to later verify the authenticity of the document or a copy thereof.

An image forming system includes an image forming apparatus and a terminal device. The terminal device converts a document into first print data, generates a second hash value corresponding to second object data in first print data, generates second print data, when the second hash value accords with the first hash value in a first storage device, by substituting the second object data in the first print data with the first hash value, and transmits the second print data to the image forming apparatus. The image forming apparatus substitutes, upon receipt of the second print data, the first hash value included in the second print data with the first object data corresponding to the first hash value and stored in the second storage device, generates second bitmap data by analyzing the second print data subjected to the substitution, and causes an image forming device to execute a printing operation.

Apparatus, system, methods, and articles of manufacture are disclosed to identify media using hash keys. An example system includes a hybrid hash key analyzer to access a metered hash key of an exposure record obtained from a meter, access reference records representative of respective portions of a plurality of media, and determine reference confirmation data candidates from respective ones of the reference records that include hash keys matching the metered hash key. The example system includes an impression logger to, when first confirmation data associated with the exposure record matches one of the reference confirmation data candidates, store an impression record that associates the media identification data associated with the matching one of the reference confirmation data candidates with a meter identifier of the exposure record. The impression logger also is to credit at least a portion of the media corresponding to the media identification data with an exposure credit.

A system and method include obtaining and authenticating image files from users such as insured users at the request of an entity such as an insurance provider. The requesting entity may supply an electronic address of the user and a unique identifier. The system may transmit a link to the electronic address. When selected, the link causes an image authentication application to be installed on a user device. The application takes the images securely and separately from a native camera application. Each image authentication application may be customized for each requesting entity. The authentication server may identify the requesting entity that made the request and identify a corresponding image authentication application to be provided to the electronic address. The images from the image authentication application may be authenticated via reverse image search, time, geolocation, and/or other information. The authenticated images and/or related data may be provided to the requesting entity.

A verification system includes: a code generation server publicizing time stamped codes; a proving device, including a video camera, that acquires a published time stamped code from the code generation server, and, while recording a video, incorporates the acquired time stamped code into the video; and a verifying device that receives the video, extracts the time stamped code from the content of the video, compares the time stamped code to published time stamped codes, and displays a verification of the published time stamped code.

Apparatus, system, methods, and articles of manufacture are disclosed to identify media using hash keys. An example system includes a hybrid hash key analyzer to access a metered hash key of an exposure record obtained from a meter, access reference records representative of respective portions of a plurality of media, and determine reference confirmation data candidates from respective ones of the reference records that include hash keys matching the metered hash key. The example system includes an impression logger to, when first confirmation data associated with the exposure record matches one of the reference confirmation data candidates, store an impression record that associates the media identification data associated with the matching one of the reference confirmation data candidates with a meter identifier of the exposure record. The impression logger also is to credit at least a portion of the media corresponding to the media identification data with an exposure credit.