International Business Machines Corporation

Peking University

Beijing Founder Electronics Co., Ltd.

Crimson Corporation

Wenzhe Shi

Xiaoyu Li

Li Ni Zhang

Bin Yang

Qian Zhang

Lidong Wang

Wenfa Qi

Jeff Hall

Shengyuan Cheng

Ziying Xin

Wenya Zhou

Embodiments of the present invention provide for hiding information in an image. A first pixel point and a second pixel point that are adjacent in an image are extracted. A first sub-pixel of the first pixel point and a second sub-pixel of the second pixel point that are to be combined during display on a display device are determined, wherein the display device determines a combined pixel value according to pixel values of the first sub-pixel and the second sub-pixel in a predefined manner. Information is hidden using parity properties of a sum of pixel values of the first sub-pixel and the second sub-pixel while the combined pixel value determined according to pixel values of the first sub-pixel and the second sub-pixel in the predefined manner is kept unchanged. By using unique display characteristics of a display device, information is hidden in an image without changing display effect of the image on the display device.

Hiding information in an image

Removing an embedded barcode in an image. A barcode-embedding area in an image is acquired. Pixels in the barcode-embedding area can be changed from a RGB color space to a color space with a luminance component. The luminance values of the pixels can be determined on a dark side or a light side. The luminance values of the pixels on the dark side or the light side can be mapped to luminance values falling into a whole range of a luminance interval. The pixels in the barcode-embedding area can be changed from the color space with the luminance component to the RGB color space.

Embedding a removable barcode into an image

A computing device configured for installing an operating system is described. The computing device includes a storage device, a processor and instructions stored in memory. The computing device begins writing an operating system image to a storage device. One or more current storage device driver files are downloaded. The computing device injects one or more current storage device drivers obtained from the one or more current storage device driver files without first booting an operating system obtained from the operating system image.

Deploying drivers for an operating system on a computing device

Disclosed are a method and apparatus for embedding or detecting watermarks in a text, which belong to the field of document protection. The method and apparatus overlay an additional layer of shade in a document for recording a large amount of information from watermarks. The shade comprises the dots arranged under certain rules. Shifts of the dots record each bit string within the watermark. According to the method and apparatus, a large amount of information can be embedded and the watermarks embedded in the shade are dispersed together with the document which can be digitized by a scanner for being detected.

Methods and apparatus for embedding and detecting digital watermarks in a text document

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Beijing, China

Wenzhe Shi