marginal sharpness

简明释义

边缘清晰度;

英英释义

例句

1.In photography, marginal sharpness refers to the slight focus variation at the edges of an image.

在摄影中，边际清晰度指的是图像边缘的轻微对焦变化。

2.When printing photographs, achieving marginal sharpness can enhance the overall quality.

在打印照片时，实现边际清晰度可以提高整体质量。

3.The image displayed a marginal sharpness, making it difficult to see the details clearly.

这张图像显示出边际清晰度，使得细节难以看清。

4.The report noted that the marginal sharpness of the graphs could be improved for better readability.

报告指出，图表的边际清晰度可以改进，以提高可读性。

5.The designer aimed for marginal sharpness in the layout to attract more viewers.

设计师在布局中追求边际清晰度以吸引更多观众。

作文

In the realm of photography, the term marginal sharpness refers to the slight degree of clarity and focus that an image possesses at its edges compared to its center. This concept is particularly important for photographers who aim to create visually striking images that draw attention to their subjects. A photograph with high marginal sharpness can lead to a more engaging composition, as it allows viewers to appreciate the details not only in the focal point but also in the surrounding elements. When capturing images, many factors contribute to the overall sharpness of a photograph. The choice of lens, aperture settings, and even the camera's sensor quality can influence how sharp or soft an image appears. Photographers often strive for optimal sharpness throughout the frame, yet achieving perfect sharpness can be challenging. This is where the concept of marginal sharpness becomes relevant. It acknowledges that while the center of the image may be perfectly focused, the edges may not achieve the same level of clarity. Understanding marginal sharpness can help photographers make informed decisions about their compositions. For instance, if a photographer is shooting a landscape, they might prioritize sharpness in the foreground while accepting softer edges, knowing that this will create a sense of depth. Conversely, in portrait photography, maintaining sharpness in the subject's eyes is crucial, while the background can have a softer focus. Moreover, the post-processing phase is where marginal sharpness can be enhanced or diminished. Photographers often use editing software to sharpen specific areas of an image, bringing more attention to the subject while allowing the edges to remain softer. This technique can create a pleasing balance within the composition, guiding the viewer's eye to the most critical parts of the photograph. Additionally, the perception of marginal sharpness can vary based on the viewing medium. For example, an image viewed on a high-resolution screen may exhibit different sharpness characteristics compared to when it is printed. Understanding this variability can help photographers adjust their techniques accordingly, ensuring that their work maintains its intended impact across different platforms. In conclusion, marginal sharpness is an essential concept in photography that emphasizes the importance of edge clarity in relation to the center of an image. By recognizing the role that marginal sharpness plays in composition, photographers can enhance their work, creating images that are not only technically proficient but also artistically compelling. As photographers continue to explore and experiment with this concept, they will find new ways to engage their audience and elevate their craft.

在摄影领域，术语边缘清晰度指的是图像边缘与中心相比所具有的轻微清晰度和焦点。这一概念对于那些希望创作出引人注目的视觉作品的摄影师尤为重要。具有高边缘清晰度的照片可以使观众更好地欣赏到焦点以及周围元素中的细节。在拍摄图像时，许多因素会影响照片的整体清晰度。镜头选择、光圈设置甚至相机传感器的质量都可能影响图像的锐利或柔和程度。摄影师通常努力实现整个画面的最佳清晰度，但完美的清晰度往往难以实现。这就是边缘清晰度概念变得相关的地方。它承认，虽然图像的中心可能是完全对焦的，但边缘可能无法达到相同的清晰度。理解边缘清晰度可以帮助摄影师在构图时做出明智的决定。例如，如果摄影师正在拍摄风景，他们可能会优先考虑前景的清晰度，同时接受边缘的柔和，知道这将创造出一种深度感。相反，在人像摄影中，保持主体眼睛的清晰度至关重要，而背景则可以有更柔和的焦点。此外，后期处理阶段是增强或减少边缘清晰度的地方。摄影师经常使用编辑软件来锐化图像的特定区域，将更多的注意力集中在主体上，同时允许边缘保持柔和。这种技术可以在构图中创造出令人愉悦的平衡，引导观众的目光聚焦于照片中最重要的部分。此外，边缘清晰度的感知可能会因观看媒介而异。例如，在高分辨率屏幕上查看的图像可能会表现出与打印时不同的清晰度特征。理解这种变异性可以帮助摄影师相应地调整他们的技术，确保他们的作品在不同平台上保持其预期的影响。总之，边缘清晰度是摄影中一个重要的概念，它强调了图像边缘清晰度与中心清晰度之间的重要性。通过认识到边缘清晰度在构图中的作用，摄影师可以提升他们的作品，创作出不仅在技术上精湛而且在艺术上引人注目的图像。随着摄影师继续探索和实验这一概念，他们将找到新的方法来吸引观众并提升他们的技艺。