You can add edge enhancement or smoothness to a Jpeg, or vary the colour depth.

你可以对格式的图像进行锐化或钝化，或改变颜色的深浅。

《柯林斯英汉双解大词典》

The actual colours may vary due to differences in monitor colour depth and make. But we will describe the products as clearly as possible.

由于不同的显示器都有不同的显示设置，产品的颜色可能会有少许差异，我们会尽量明确地描述。

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She had resumed the travel necessary to add depth and colour to her novels.

她重新开始旅行以给她的小说增加深度和趣味。

《柯林斯英汉双解大词典》

Their reasons for doing so seem to be that the depth of the colour is a good indicator of how free a male is of parasitic infection, and thus how good a father he will make.

ECONOMIST: Birds do it, bees do it | The

Many of the same concerns are there: an emphasis on tempo as well as harmony as a structural force, a laser-like ear for instrumental colour, and above all, the creation of a vivid depth of experience for performers and listeners.

ECONOMIST: Elliott Carter