摘要:
An image processing unit is provided which can solve a problem of a conventional image processing unit in that the control for coding image data is complicated and its circuit scale is large. The image pickup apparatus picks up an image of a subject and converts it to electric signals, thereby outputting image signals. An A/D converter A/D converts the image signals, and outputs them as image data. A fixed length coding circuit breaks down the image data into small unit blocks consisting of a predetermined number of pixels, and carries out fixed length coding after obtaining the average level of the pixel data in each unit block. An exposure controller calculates a luminance level of a whole set of pixel data in the unit blocks, and controls the exposure of the image pickup apparatus so that image data becomes a predetermined luminance level.
摘要翻译:提供一种图像处理单元,其可以解决传统图像处理单元的问题在于,对图像数据进行编码的控制复杂并且其电路规模大。 图像拾取装置拾取被摄体的图像并将其转换为电信号,从而输出图像信号。 A / D转换器A / D转换图像信号,并将其作为图像数据输出。 固定长度编码电路将图像数据分解为由预定数量的像素组成的小单位块,并且在获得每个单位块中的像素数据的平均水平之后执行固定长度编码。 曝光控制器计算单位块中整个像素数据的亮度水平,并且控制图像拾取装置的曝光,使得图像数据变为预定的亮度级。
摘要:
An image processing method has an edge intensity value calculating section (4) for calculating an edge intensity value in a neighborhood of a pixel of interest from feature values of micro regions calculated by a feature value calculating section (3); an edge intensity value correcting section (5) for correcting the edge intensity value calculated by the edge intensity value calculating section (4) in accordance with an edge intensity correction curve; and a filter value calculating section (6) for calculating a low-pass filter value of the pixel of interest from image signal values of neighboring pixels having the same color component as the pixel of interest. It corrects the image signal value of the pixel of interest by carrying out weighted addition of the image signal value of the pixel of interest and the low-pass filter value using the edge intensity values before and after the correction.
摘要:
An output value calculating unit 5 performs weighting arithmetic operations on a plurality of filter values calculated by a filter value calculating unit 4 by using a feature quantity detected by a feature quantity detecting unit 1, a directional correlation value calculated by a directional correlation value calculating unit 2 and an amplitude level calculated by an amplitude level calculating unit 3, and multiplies a result of the weighting arithmetic operations by a sensitization magnification to create pixel signals of a correctly exposed image.
摘要:
An image processing device includes a first calculation means for calculating a non-capture color signal corresponding to an H-th interpolation color for a pixel of interest, a second calculation means for calculating a non-capture color signal by multiplying a J-th capture color signal corresponding to the capture color for the pixel of interest by the ratio of the H-th two-dimensional low-pass filter output to the J-th two-dimensional low-pass filter output, and a third calculation means for calculating a non-capture color signal corresponding to the H-th interpolation color for the pixel of interest using the calculation result according to the first calculation means and the calculation result according to the second calculation means.
摘要:
A rewritable recording/display apparatus using a rewritable recording medium in which color development reaction occurs by thermal energy at a predetermined temperature, and in which a color extinguishing reaction occurs by thermal energy at a temperature lower than the color development temperature, and which is capable of repeatingly performing recording and erasing of images. The apparatus also has a color developing heating device for recording an image on the rewritable recording medium by heating the rewritable recording medium, and an erasing heating device for erasing the image after the image has been recorded. Thus, the apparatus is designed so as to have a recording section simplified and reduced in size, and to reduce the maintenance and running cost. A method of erasing a rewritable record enables images to be erased completely or suitably in terms of practice and enables formation of high-quality image after erasing of the previous image.
摘要:
An output value calculating unit 5 performs weighting arithmetic operations on a plurality of filter values calculated by a filter value calculating unit 4 by using a feature quantity detected by a feature quantity detecting unit 1, a directional correlation value calculated by a directional correlation value calculating unit 2 and an amplitude level calculated by an amplitude level calculating unit 3, and multiplies a result of the weighting arithmetic operations by a sensitization magnification to create pixel signals of a correctly exposed image.
摘要:
An image processing device includes a first calculation means for calculating a non-capture color signal corresponding to an H-th interpolation color for a pixel of interest, a second calculation means for calculating a non-capture color signal by multiplying a J-th capture color signal corresponding to the capture color for the pixel of interest by the ratio of the H-th two-dimensional low-pass filter output to the J-th two-dimensional low-pass filter output, and a third calculation means for calculating a non-capture color signal corresponding to the H-th interpolation color for the pixel of interest using the calculation result according to the first calculation means and the calculation result according to the second calculation means.
摘要:
The difference between the output of a k-signal nonlinear low-pass filter (8g) and the output of an h-signal nonlinear low-pass filter (8r) is added (44) to the value of the h-th pixel signal (h(i, j)) at the pixel position of interest to obtain the k-th pixel signal (k(i, j)) at the pixel position of interest. Accurate pixel interpolation can be performed with good noise immunity, even at locations where the color signals are uncorrelated.
摘要:
A pixel signal having a k-th spectral characteristic at a pixel interpolation position occupied by a pixel signal having an h-th spectral characteristic is generated from a set of pixel signals arrayed in a two-dimensional plane, each having one of a plurality of spectral characteristics, by calculating a difference between low-frequency components, corresponding to a degree of correlation between pixel signals having the k-th and h-th spectral characteristics in a neighborhood of the pixel interpolation position (8r, 8g, 8b, 24k, 24h, 26), calculating a non-correlation value corresponding to a degree of non-correlation between the pixel signals having the k-th and h-th spectral characteristics in the neighborhood of the pixel interpolation position (7r, 7g, 7b, 23k, 23h, 25), and obtaining the pixel signal having the k-th spectral characteristic at the pixel interpolation position by using the calculated difference and the non-correlation value (27, 28, 29). Accurate interpolation can be performed despite various different correlation relationships between color component values.
摘要:
An image processing method has an edge intensity value calculating section (4) for calculating an edge intensity value in a neighborhood of a pixel of interest from feature values of micro regions calculated by a feature value calculating section (3); an edge intensity value correcting section (5) for correcting the edge intensity value calculated by the edge intensity value calculating section (4) in accordance with an edge intensity correction curve; and a filter value calculating section (6) for calculating a low-pass filter value of the pixel of interest from image signal values of neighboring pixels having the same color component as the pixel of interest. It corrects the image signal value of the pixel of interest by carrying out weighted addition of the image signal value of the pixel of interest and the low-pass filter value using the edge intensity values before and after the correction.