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    • 5. 发明授权
    • Method and system for generating digital image files for a limited display
    • 用于生成有限显示的数字图像文件的方法和系统
    • US07130474B2
    • 2006-10-31
    • US10259538
    • 2002-09-27
    • Jiebo LuoGustav BraunChristophe Papin
    • Jiebo LuoGustav BraunChristophe Papin
    • G06K9/36
    • G06T3/40
    • A method for processing a digital color image for display and transmission includes the steps of (a) resizing the image to a lower display resolution to produce a display-sized image, (b) quantizing the display-sized image to a display palette with an error diffusion process to produce an error diffused image, (c) losslessly compressing the error diffused image to produce a compressed image having a particular file size, (d) comparing the file size to a maximum file size and if less than the maximum file size, transmitting the digital image to the display; (e) if the file size is greater than the maximum file size but less than a another predetermined file size, reducing the error diffusion rate by a predetermined amount in order to reduce the file size; and (f) if the file size is greater than the maximum file size and the predetermined file size, simplifying the resized image by reducing image detail to produce a simplified image and repeating the preceding steps on the simplified image.
    • 一种用于处理用于显示和传输的数字彩色图像的方法包括以下步骤:(a)将图像的尺寸调整为较低的显示分辨率以产生显示尺寸的图像,(b)将显示尺寸的图像量化到显示调色板,其中 错误扩散过程以产生误差扩散图像,(c)无损地压缩误差扩散图像以产生具有特定文件大小的压缩图像,(d)将文件大小与最大文件大小进行比较,如果小于最大文件大小 将数字图像发送到显示器; (e)如果文件大小大于最大文件大小但小于另一预定文件大小,则将误差扩散速率降低预定量以减小文件大小; 和(f)如果文件大小大于最大文件大小和预定文件大小,则通过减少图像细节来简化调整大小的图像以产生简化图像,并且在简化图像上重复前述步骤。