摘要:
An image processing apparatus includes a depth value detecting unit configured to detect depth values of individual pixels of an input image; an integrating unit configured to integrate the depth values in each predetermined region of the input image; an analyzing unit configured to analyze the tendency of an integrated result of the depth values in each predetermined region of the input image; and a processing unit configured to process the input image on the basis of an analysis result obtained by the analyzing unit.
摘要:
There is provided an image determining device including a frequency band signal detecting unit for dividing an image into a plurality of local regions and detecting for each local region signals of a plurality of frequency bands from the image signal; an average value calculating unit for calculating an average value of a characteristic value corresponding to an amplitude, for each local region and for each signal of the plurality of frequency bands; a local region selecting unit for selecting at least one local region based on image information; an average value selecting unit for selecting the average value corresponding to the selected local region; a relative value calculating unit for calculating a relative value of one average value with respect to another average value both of the average values being of the selected average values; and an image determining unit for determining an image based on the relative value.
摘要:
A noise reduction method for reducing noise in an input video signal to output an output video signal includes the steps of generating a motion-compensated reference video signal from the output video signal; delaying the output video signal to generate a non-motion-compensated reference video signal; mixing the motion-compensated reference video signal with the non-motion-compensated reference video signal to generate a reference video signal; subtracting the generated reference video signal from the input video signal to generate a differential signal; compensating the differential signal to generate a noise reduction signal; and subtracting the noise reduction signal from the input video signal.
摘要:
The format of an input image is determined appropriately, and an appropriate output image adapted to a format that can be displayed on a display section is displayed.An image format determining section 120 determines whether an image inputted to an image input section 110 is in the image format for a plane display image or is in the image format for a stereo display image. A displayable format determining section 160 determines a displayable format of an output image which can be displayed on an image display section 170. An operational input accepting section 150 accepts the output format of the output image displayed on the image display section 170 as a designated display format. An output format determining section 130 determines the output format of the output image on the basis of the image format, the displayable format, and the designated display format. An output image creating section 140 creates the output image from the input image on the basis of this output format for display on the image display section 170.
摘要:
In an image pickup apparatus, a level compensator compensates the level of an image xL (i, j) sensed by an image sensor by exposure for a long time on the basis of the exposure of the image to produce a compensated image xL′ (i, j), while another level compensator compensates the level of an image xS (i, j) sensed by the image sensor by exposure for a short time on the basis of the exposure of the image to produce a compensated image xS′ (i, j). The image pickup apparatus also includes an image synthesizer to synthesize these compensates images xL′ (i, j) and xS′ (i, j) to produce a single synthetic image x (i, j). A dynamic range compressor also included in the image pickup apparatus compresses the synthetic image x (i, j) to produce a compressed image y (i, j) for delivery to outside.
摘要:
An image determination apparatus includes a frequency band signal detecting unit, an average value calculating unit, a relative value calculating unit, and an image determination unit. The frequency band signal detecting unit detects signals belonging to a plurality of frequency bands, from an image signal. The average value calculating calculates average values for respective ones of the signals belonging to the plurality of frequency bands detected by the frequency band signal detecting unit. Each of the average values is a characteristic value equivalent to an amplitude. The relative value calculating unit calculates a relative value of one of the average values to another of the average values, among the average values calculated for respective ones of the plurality of frequency bands. The image determination unit for determining an image based on the relative value calculated by the relative value calculating unit. The image determined is subject to image-processing.
摘要:
The present invention is applied, for example, to resolution conversion. An edge gradient direction v1 with the largest gradient of pixel values and an edge direction v2 orthogonal to the edge gradient direction v1 are detected. Edge enhancement and smoothing processing are performed in the edge gradient direction v1 and in the edge direction v2, respectively, to generate output image data D2.
摘要:
A image processing apparatus includes a first image converting section for converting an original image into an output resolution image, a second image converting section for converting the original image into an intermediate resolution image, a similarity information generating section for detecting a plurality of similar areas, in a block in the intermediate resolution image corresponding to a predetermined partial area in the output resolution image, that resemble the partial area, and for generating similarity information including a position of each of the plurality of similar areas in the intermediate resolution image and a weight of the position, a texture generating section for generating a texture image by combining high-frequency components of the intermediate resolution image at the position according to the weight, and a texture blending section for blending the output resolution image and the texture image to generate output image.
摘要:
The invention provides an image processing apparatus and an image processing method. An area to which image data belongs is discriminated, and a correction coefficient to be used for correction of a pixel value of the image data is produced based on a result of the discrimination. Then, the pixel value of the image data is corrected with the correction coefficient. The relationship in magnitude among pixel values in the same area is maintained because the same coefficient is used, but pixel values which belong to different areas can be varied or even reversed. This allows the gradation of an entire image to be corrected while preventing partial deterioration of the contrast.
摘要:
By the use of an epsilon filter, in the case where a plurality of different illuminations exist, a boundary between the illuminations can be appropriately extracted, and an unnatural image pattern can be prevented from being generated, therefore subjectively preferable compression of a dynamic range can be achieved. An edge strength G(x, y) is calculated per position on an input image, and a threshold E(x, y) of an epsilon filter (12) is controlled on the basis of the edge strength G(x, y). The epsilon filter (12) filters the input image on the basis of the controlled threshold E(x, y). On the basis of the edge strength G(x, y), the threshold E of the epsilon filter (12) is adaptively changed according to a local gradient of a pixel value I(x, y), so in the case of using a linear lowpass filter or a fixed threshold epsilon filter, an illumination boundary can be more accurately extracted.