Electronic camera with reduced color artifacts
    3.
    发明授权
    Electronic camera with reduced color artifacts 失效
    具有减少彩色伪影的电子照相机

    公开(公告)号:US5778106A

    公开(公告)日:1998-07-07

    申请号:US615899

    申请日:1996-03-14

    摘要: A method and apparatus for processing an image captured by an image acquisition device having a two-dimensional matrix of non-square pixels with a first aspect ratio. In one aspect of the method, the image is sampled in a color sub-sampled manner such that fewer than three color measurements are known for each pixel location. A processed image is then constructed by processing the fewer than three color measurements known for each pixel to generate one or more interpolated color values at each of the pixel locations. A processed image is then created for rendering on an output device having a square raster with a second aspect ratio which differs from the first aspect ratio. The processed image is processed such that an aspect ratio of the original image captured on the non-square pixels is maintained on the output device.

    摘要翻译: 一种用于处理由具有第一宽高比的具有非正方形像素的二维矩阵的图像获取装置拍摄的图像的方法和装置。 在该方法的一个方面中,以彩色亚采样方式对图像进行采样,使得每个像素位置已知少于三个颜色测量。 然后通过处理对于每个像素已知的少于三个颜色测量来构造经处理的图像,以在每个像素位置处生成一个或多个内插颜色值。 然后,创建经处理的图像,用于在具有与第一宽高比不同的第二宽高比的具有正方形栅格的输出装置上进行渲染。 对经处理的图像进行处理,使得在输出设备上保持在非正方形像素上捕获的原始图像的纵横比。

    Printing method
    4.
    发明授权
    Printing method 失效
    打印方法

    公开(公告)号:US5170261A

    公开(公告)日:1992-12-08

    申请号:US616658

    申请日:1990-11-21

    CPC分类号: H04N1/4055 H04N1/0402

    摘要: Printing apparatus and method particularly suited to provide a hardcopy of an image which is produced by medical imaging equipment or the like. The method produces an area modulation hardcopy having a large number of gray levels per area modulation cell (pixel) and a strong density sensitivity preferably by pulse width modulating two different sized printing radiation beams.

    摘要翻译: 特别适用于提供由医学成像设备等制造的图像的硬拷贝的印刷装置和方法。 该方法产生具有每个区域调制单元(像素)具有大量灰度级的区域调制硬拷贝,优选通过调制两种不同大小的打印辐射束的脉冲宽度来产生强密度灵敏度。

    Brightness adjustment of images using digital scene analysis
    5.
    发明授权
    Brightness adjustment of images using digital scene analysis 失效
    使用数字场景分析的图像亮度调整

    公开(公告)号:US5724456A

    公开(公告)日:1998-03-03

    申请号:US414750

    申请日:1995-03-31

    摘要: A system and method for processing a digital image signal which represents an image can be made to optimally map luminance values versus a tonal reproduction capability of a destination application. Specifically, the system includes a device for partitioning the image into blocks, then combining certain blocks into sectors. An average luminance block value is determined for each block and a difference is determined between the maximum and minimum average luminance block values for each sector. If the difference exceeds a predetermined threshold value, then the sector is labeled as an active sector and an average luminance sector value is obtained from maximum and minimum average luminance block values. All weighted counts of active sectors of the image are plotted versus the average luminance sector values in a histogram, then the histogram is shifted via some predetermined criterion so that the average luminance sector values of interest will fall within a destination window corresponding to the tonal reproduction capability of a destination application.

    摘要翻译: 用于处理表示图像的数字图像信号的系统和方法可以进行最佳地映射亮度值与目的地应用的色调再现能力。 具体地说,该系统包括用于将图像划分成块的装置,然后将某些块组合成扇区。 对于每个块确定平均亮度块值,并且在每个扇区的最大和最小平均亮度块值之间确定差异。 如果差异超过预定阈值,则扇区被标记为活动扇区,并且从最大和最小平均亮度块值获得平均亮度扇区值。 将图像的有效扇区的所有加权计数相对于直方图中的平均亮度扇区值绘制,然后通过某个预定标准移动直方图,使得感兴趣的平均亮度扇区值将落入对应于色调再现的目的地窗口 目的地应用程序的能力。

    Diffusion transfer integral film unit
    6.
    发明授权
    Diffusion transfer integral film unit 失效
    扩散传递整体膜单元

    公开(公告)号:US5449586A

    公开(公告)日:1995-09-12

    申请号:US335675

    申请日:1994-11-08

    CPC分类号: G03C8/48 H04N1/48

    摘要: A novel method and apparatus is disclosed for electronically sensing a negative and a positive in a novel integral film structure of the instant development type using light of different wavelengths so as to produce reflected light from the negative and the positive which are indicative of the luminance characteristics and the chrominance characteristics of the image. The novel integral film structure has a filter which allows the negative to be scanned. Specifically, the filter transmits incident infrared radiation to which silver halide emulsion layers are sensitive and blocks the transmission of radiation in the range of wavelengths to which the silver halide emulsion layers are sensitive.

    摘要翻译: 公开了一种新颖的方法和装置,用于使用不同波长的光电子感测即时显影类型的新颖的整体膜结构中的阴性和阳性,以便产生来自阴性和阳性的反射光,这些反射光指示亮度特性 和图像的色度特性。 该新颖的整体膜结构具有允许扫描负极的滤光器。 具体地,滤光器透射入卤化银乳剂层敏感的入射红外辐射,并阻止卤化银乳剂层敏感的波长范围内的辐射透射。

    Method and apparatus for scanning of image in integral film structure
    7.
    发明授权
    Method and apparatus for scanning of image in integral film structure 失效
    用于在整体膜结构中扫描图像的方法和装置

    公开(公告)号:US5408447A

    公开(公告)日:1995-04-18

    申请号:US913363

    申请日:1992-07-15

    CPC分类号: G03C8/48 H04N1/48

    摘要: A novel method and apparatus is disclosed for electronically sensing a negative and a positive in a novel integral film structure of the instant development type using light of different wavelengths so as to produce reflected light from the negative and the positive which are indicative of the luminance characteristics and the chrominance characteristics of the image. The novel integral film structure has a filter which allows the negative to be scanned. Specifically, the filter transmits incident radiation in the range of wavelengths other than a select range of wavelengths to which silver halide emulsion layers are sensitive and blocks the transmission of radiation in the range of wavelengths to which the silver halide emulsion layers are sensitive.

    摘要翻译: 公开了一种新颖的方法和装置,用于使用不同波长的光电子感测即时显影类型的新颖的整体膜结构中的阴性和阳性,以便产生来自阴性和阳性的反射光,这些反射光指示亮度特性 和图像的色度特性。 该新颖的整体膜结构具有允许扫描负极的滤光器。 具体地,滤光器在除了卤化银乳剂层敏感的波长选择范围之外的波长范围内传输入射辐射,并阻止卤化银乳剂层敏感的波长范围内的辐射透射。