Abstract: An encoding apparatus comprises a dividing unit that divides RAW image data into a plurality of tiles, a generating unit that generates planes of a plurality of channels having mutually-different components for each of the tiles, a transforming unit that frequency-transforms the plane of each channel and generates sub-band data of a plurality of resolution levels, a controller that divides each of the plurality of sub-band data into the same number of segments to divide the sub-band data into a plurality of segments corresponding to the same regions, and determines first quantization parameters common for the plurality of sub-band data in each segment, a quantizing unit that, based on the determined first quantization parameters, quantizes each sub-band data, and an encoder that encodes a quantization result on a sub-band-by-sub-band basis.

Abstract: A coding apparatus capable of improving coding efficiency without calculating a PSNR that is coding distortion. A conversion unit obtains subbands by applying wavelet transform to image data. A control unit decides quantization parameters of the respective subbands within quantization parameter ranges corresponding to image quality modes of the image data. A quantization unit quantizes the subbands obtained by the conversion unit based on the respective quantization parameters decided by the control unit. A coding unit codes quantization image data quantized by the quantization unit.

Abstract: A frequency transformation unit executes discrete wavelet transformation processing on image data, quantizes the output of sub-bands of each component using a quantization unit, and performs entropy coding using a coding unit. If a total code amount of the image data that has been coded exceeds a maximum value that has been set, an overflow control unit replaces the coded data with copy data obtained by coding 0 in order from sub-bands having the lowest priority, until the total code amount is less than or equal to the maximum value.

Abstract: An encoding apparatus comprises a dividing unit that divides RAW image data into a plurality of tiles, a generating unit that generates planes of a plurality of channels having mutually-different components for each of the tiles, a transforming unit that frequency-transforms the plane of each channel and generates sub-band data of a plurality of resolution levels, a controller that divides each of the plurality of sub-band data into the same number of segments to divide the sub-band data into a plurality of segments corresponding to the same regions, and determines first quantization parameters common for the plurality of sub-band data in each segment, a quantizing unit that, based on the determined first quantization parameters, quantizes each sub-band data, and an encoder that encodes a quantization result on a sub-band-by-sub-band basis.

Abstract: An image capturing apparatus that continuously generates and records a sequence of RAW images, the image capturing apparatus comprising, an image capturing unit configured to generate a RAW image by shooting a subject, an encoding unit configured to generate encoded data by encoding the RAW image, and a recording/reproduction unit configured to record the encoded data in a recording medium and read out the encoded data from the recording medium, wherein the encoding unit includes a quantization unit configured to, when the sequence of RAW images are continuously generated, perform quantization while changing a quantization parameter within the same RAW image.

Abstract: An image capturing apparatus which generates an image by shooting a subject, calculates a parameter for image encoding, and generates encoded data by encoding the shot image using the parameter, wherein while encoded data of a first image to be encoded is generated, a first parameter is generated for encoding a second image to be encoded next based on an encoding result of a third image that has been encoded immediately before the first image, and in a period from completion of encoding of the first image to a start of encoding of the second image, one of the first parameter and a second parameter is provided as a parameter for encoding the second image based on a correlation between the first image and the third image.

Abstract: An apparatus comprises a dividing unit which divides image data to be encoded into a plurality of tiles, a converting unit which generates a plurality of sub-bands by a frequency transform on the divided tiles, a quantizing unit which quantizes the generated sub-bands by either (1) a first method of quantizing by identical quantization parameters in relation to identical sub-bands of a plurality of tiles, or (2) a second method of quantizing by quantization parameters set individually for each tile in relation to identical sub-bands of a plurality of tiles, an encoding unit which encodes data obtained by the quantizing, and a control unit which switches, in accordance with a target data amount of the image data to be encoded, whether to quantize by the first method or to quantize by the second method.

Abstract: A coding apparatus capable of improving coding efficiency without calculating a PSNR that is coding distortion. A conversion unit obtains subbands by applying wavelet transform to image data. A control unit decides quantization parameters of the respective subbands within quantization parameter ranges corresponding to image quality modes of the image data. A quantization unit quantizes the subbands obtained by the conversion unit based on the respective quantization parameters decided by the control unit. A coding unit codes quantization image data quantized by the quantization unit.

Abstract: An image capturing apparatus which generates an image by shooting a subject, calculates a parameter for image encoding, and generates encoded data by encoding the shot image using the parameter, wherein while encoded data of a first image to be encoded is generated, a first parameter is generated for encoding a second image to be encoded next based on an encoding result of a third image that has been encoded immediately before the first image, and in a period from completion of encoding of the first image to a start of encoding of the second image, one of the first parameter and a second parameter is provided as a parameter for encoding the second image based on a correlation between the first image and the third image.

Abstract: An image capturing apparatus that continuously generates and records a sequence of RAW images, the image capturing apparatus comprising, an image capturing unit configured to generate a RAW image by shooting a subject, an encoding unit configured to generate encoded data by encoding the RAW image, and a recording/reproduction unit configured to record the encoded data in a recording medium and read out the encoded data from the recording medium, wherein the encoding unit includes a quantization unit configured to, when the sequence of RAW images are continuously generated, perform quantization while changing a quantization parameter within the same RAW image.

Abstract: An image processing apparatus includes a coding unit configured to code first moving image data, a generation unit configured to generate second moving image data having a smaller number of pixels than the first moving image data, and an adding unit configured to, in a case where the first moving image data is not properly coded by the coding unit when the second moving image data is generated while the first moving image data is coded, add to the second moving image data predetermined information for identifying that the first moving image data is not properly coded.

Abstract: An apparatus comprises a dividing unit which divides image data to be encoded into a plurality of tiles, a converting unit which generates a plurality of sub-bands by a frequency transform on the divided tiles, a quantizing unit which quantizes the generated sub-bands by either (1) a first method of quantizing by identical quantization parameters in relation to identical sub-bands of a plurality of tiles, or (2) a second method of quantizing by quantization parameters set individually for each tile in relation to identical sub-bands of a plurality of tiles, an encoding unit which encodes data obtained by the quantizing, and a control unit which switches, in accordance with a target data amount of the image data to be encoded, whether to quantize by the first method or to quantize by the second method.

Abstract: A frequency transformation unit executes discrete wavelet transformation processing on image data, quantizes the output of sub-bands of each component using a quantization unit, and performs entropy coding using a coding unit. If a total code amount of the image data that has been coded exceeds a maximum value that has been set, an overflow control unit replaces the coded data with copy data obtained by coding 0 in order from sub-bands having the lowest priority, until the total code amount is less than or equal to the maximum value.

Abstract: During shooting, first encoded image data based on image data obtained by performing a simplified development process on RAW image data is recorded together with a RAW image, and afterward, second encoded image data based on image data obtained by performing a high-quality development process on the RAW image data is generated and recorded. By estimating the data amount of the second encoded image data during shooting and reflecting an area based on this data amount on management information of the recording medium as an area for recording the second encoded image data, the area in the recording medium is ensured.

Abstract: A moving image encoding apparatus comprising a calculation unit configured to calculate an expected occupation amount of a virtual buffer when a picture contained in a generated encoded stream is held for decoding processing, and a code amount control unit configured to control a generated code amount in an encoding unit based on information of the occupation amount, wherein every time a predetermined group of pictures in the encoded stream starts, the calculation unit sets a virtual buffer having an initial value, and updates the occupation amount of the virtual buffer based on a size of the picture contained in the encoded stream, and the generated code amount is compared with a smallest occupation amount of the plurality of virtual buffer occupation amounts, and controls the generated code amount not to exceed the smallest occupation amount.

Abstract: During shooting, first encoded image data based on image data obtained by performing a simplified development process on RAW image data is recorded together with a RAW image, and afterward, second encoded image data based on image data obtained by performing a high-quality development process on the RAW image data is generated and recorded. By estimating the data amount of the second encoded image data during shooting and reflecting an area based on this data amount on management information of the recording medium as an area for recording the second encoded image data, the area in the recording medium is ensured.

Abstract: An encoding apparatus includes an image capture unit configured to capture an image through a lens; a characteristic determination unit configured to determine characteristics of the image based on a difference between a predetermined region where characteristics of the lens influence image quality and another region; a size determination unit configured to determine, based on the characteristics of the image, a block size used to divide a target block included in the image; a division unit configured to divide the target block into a plurality of blocks based on the determined block size; and a prediction coding unit configured to encode the plurality of blocks.

Abstract: An encoding apparatus for inputting a first image signal and a second image signal from an input source different from an input source of the first image signal adaptively decides a first bit rate and a second bit rate which are respectively assigned to a first encoding unit for encoding the input first image signal and a second encoding unit for encoding the input second image signal on the basis of the first image signal, on the basis of photographing mode information or distortion ratios of encoding by the encoding units.

Abstract: An image processing apparatus includes a coding unit configured to code first moving image data, a generation unit configured to generate second moving image data having a smaller number of pixels than the first moving image data, and an adding unit configured to, in a case where the first moving image data is not properly coded by the coding unit when the second moving image data is generated while the first moving image data is coded, add to the second moving image data predetermined information for identifying that the first moving image data is not properly coded.

Abstract: There is provided a moving image encoding apparatus configured to perform encoding using motion compensation and quantization. A first dividing unit divides a coding target image into a plurality of first block images. A second dividing unit divides the first block image into a plurality of second block images. A characteristic amount calculating unit calculates, for each of the plurality of second block images, a characteristic amount. A selecting unit, if a degree of variation in the characteristic amounts of the plurality of second block images is greater than or equal to a threshold value, selects the plurality of second block images, and if not, selects the first block image. An encoding unit encodes the plurality of second block images or the first block image in accordance with the selection performed by the selecting unit.