Abstract:
An image communication apparatus includes an unit for obtaining a threshold value that determines a coding format used for transmission of an image stored for the transmission from an information of the image stored for the transmission; and a transmission controlling unit flat transmits the image stored for the transmission using a JBIG format if a size of the image stored for the transmission exceeds the threshold value, and transmits the image using a coding format having a compression ratio lower than that of the JBIG format if the size of the image stored for the transmission does not exceed the threshold value.
Abstract:
An image forming apparatus and method capable of decompressing and compressing image data. More specifically, the apparatus and method include decompressing first compressed image data, processing the decompressed image data, selecting from among a plurality of quantization tables a quantization table providing a compression ratio lower than a compression ratio of the first compressed image data, and compressing the processed image data.
Abstract:
Disclosed herein are systems and methods related to electronic voice or data communication. More specifically, the systems and methods disclosed herein relate to the selection of transmitting devices, communication network paths, transmittal options and/or receiving device protocols for electronic voice or data communication.
Abstract:
There is provided a decoding apparatus and a decoding method which are for using compressed data efficiently by making the resolutions of the individual components differ from one another. A decoding apparatus decodes compressed data that represents an image signal composed of a plurality of components as a compressed code by making the resolutions of the individual components differ from one another. The decoding apparatus basically comprises input sections 5-Y, 5-I, 5-Q which decode compressed data and take in the individual components independently, a reduction circuit 5-Y-1 which reduces and changes a size corresponding to the processing unit and resolution of any one of the components, and a conversion section 5-6 which converts into a decoded image signal in a specific format by using reduced components and uncompressed components.
Abstract:
A data sending apparatus, on sending data to a receiving apparatus, searches its storage for a transmission method to the receiving apparatus. After sending data to the receiving apparatus, the sending apparatus receives from the receiving apparatus a transmission result including a transmission condition and capabilities of the receiving apparatus. When an error occurs during the data transmission, the sending apparatus reads the communication and processing capabilities of the receiving apparatus from the transmission result, and resends the data by a transmission method in accordance with the receiving apparatus. It then acquires the transmission result and stores the same in the storage.
Abstract:
This disclosure relates to a technique for automatically selecting compression/non-compression for each digital document upon archiving digital documents. Whether or not each digital document is to be stored in a compressed or non-compressed state is determined based on a predetermined reference. A digital document which is determined to be stored in a compressed state is controlled to be stored in the compressed state, and a digital document which is determined to be stored in a non-compressed state is controlled to be stored in the non-compressed state, thus generating an archive file. This disclosure relates to a technique for determining whether or not each digital document is to be uploaded to a server, and generating an archive file that stores abstract data of uploaded digital documents, and digital documents which are not uploaded, upon archiving digital documents.
Abstract:
An imaging apparatus includes a signal processing unit that generates moving image data and still image data using image data output from an imaging unit, a moving image coding unit that encodes the moving image data, a still image coding unit that encodes the still image data, a recording unit that records the coded moving and still image data on a recording medium, a setting unit that sets a data rate of the coded moving image data, and a control unit that controls the moving and still image coding units. The control unit controls the moving image coding unit based on the set data rate to adjust the data rate of the moving image data and the still image coding unit based on the set data rate and a recording data rate of the recording medium to adjust an amount of the still image data.
Abstract:
An image forming apparatus, a client PC, and a thin client PC are connected to a server device via a network. The client PC, or the thin client PC, transmits a printing instruction to the server device and the server device transmits the printing instruction to the image forming apparatus. In a thin client environment, a network between the server device and the image forming apparatus can be a narrowband network. Therefore, the server device compresses the whole printing instruction and then transmits the compressed printing instruction to the image forming apparatus.
Abstract:
An imaging apparatus comprises an imaging device to take an image, a device to create a main image by resizing a main image before compressing imaged by the imaging device, and then by compressing to a fixed length, a device to create a reduced image for display by resizing to reduce the main image before compressing, and then by compressing the reduced main image before compressing, a device to estimate a most appropriate compression parameter for compressing the main image before compressing, which is resized to create the main image, in the proximity of a target size based on a data created by the device to create a reduced image for display, and a compression device to obtain a most appropriate compression rate based on the most appropriate compression parameter, and then to compress the main image before compressing to the fixed length by the most appropriate compression rate.
Abstract:
The present invention relates to an image capturing apparatus and method in which the image recording time is reduced and the memory capacity required for compression is also reduced. A number-of-bytes calculation unit 302 determines the number of bytes after compression based on an integrated value of high-frequency integrated data supplied from a high-frequency integration processor. Based on the determined number of bytes, a Q-scale calculation unit 303 determines a Q-scale based on which the image data can be compressed one time to a predetermined data size. A Q-table generation unit 304 generates a Q-table based on the Q-scale. A DCT unit 321 performs a discrete cosine transform on the input image data. A quantization processor 322 adjusts the compression ratio of the image data based on the up-to-date Q-table supplied from the Q-table generation unit 304. A variable-length coding processor 323 encodes the image data with variable length coding such as Huffman coding, and outputs the resulting compressed image data. The present invention is applicable to digital cameras.