图像绘制和覆盖
覆盖
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绘图使用 Windows GDI(图形设备接口 系统调用。 |
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MFC(Microsoft Foundation Class) 应用程序通常使用 事件处理程序绘制,其中指向设备上下文的指针可用。 |
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可以使用 LUT 查找表(使用直方图拉伸技术或伪着色)来改进灰度级图像。 |
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非破坏性覆盖绘图操作不会改变图像内容,例如/。 |
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破坏性覆盖 绘图操作,通过绘制图像内的图像来更改图像内容,例如 。灰度级[彩色]图像只能接收灰度级[彩色]覆盖。 |
Enhanced Image Display
When the enhanced image display mode is enabled, a high-quality interpolation method is used to display the resized images.
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By default, this option is disabled. |
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Enhanced image display has a significant impact on display speed, the drawing can be 4x to 10x slower. |
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The drawing of images with EBW8Vector or EC24Vector used as Look Up Table doesn't support enhanced image display |
EnhancedImageDisplay disabled (left) and enabled (right)
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Open eVision Studio exposes this option in View > Option dialog: |