Check the image sample

图像样张有时也被称为随机样张或散播样张，又因为这些样张上只有图像，而没有任何页面布局方面的信息。如果你不知道扫描后的图片或拍摄的数码照片将如何被复制，或者不知道印刷服务供应商是否已经帮你完成了扫描工作，那你可能就要在进入下一个生产步骤之前检查一下图像样张。

Image proofs are sometimes referred to as random proofs or spread proofs, because there are only images on these proofs without any page layout information. If you don't know how the scanned image or digital photo will be copied, or whether the printing service provider has finished the scanning work for you, you may need to check the image sample before going to the next production step.

检查以下参数：

Check the following parameters:

尺寸。图像的尺寸是否正确？如果要在一个项目里对不同尺寸的同一幅图像进行重复使用，那么就要检查一下每一幅图像的缩放比例是否正确。

Size. Is the size of the image correct? If you want to reuse the same image of different sizes in a project, you need to check whether the scaling ratio of each image is correct.

裁切。当你打算把图像放入页面版式中的时候，它能否占满整个目标区域？千万不要把不该裁的内容裁切。此外，如果你只需要用到一幅图像中的很小的一部分，那就可以把没用的图像都裁掉，以节约存储空间，加快处理速度。

Cutting. When you plan to put the image into the page layout, can it occupy the whole target area? Don't cut the content that shouldn't be cut. In addition, if you only need to use a small part of an image, you can cut out all the useless images to save storage space and speed up processing.

方向。确定在最终的版式中，你所处理的图像是要被横向使用还是纵向使用的。

Direction. Determine whether the image you are processing will be used horizontally or vertically in the final layout.

角度。图像目前的角度是否与它在印刷成品中使用的角度相同？

Angle. Is the current angle of the image the same as that used in the printed product?

匹配原稿。这个样张是否能真实地再现透明原稿、反光艺术品或数码照片？样张与原稿的匹配程度有时就是一种主观的评价，但我们可以在只使用CMYK四色颜料的前提下，检查一下样张与原稿是否匹配。

Match the original. Can this sample truly reproduce transparent original, reflective artwork or digital photos? Sometimes the matching degree between the sample and the original is a subjective evaluation, but we can check whether the sample and the original match on the premise of only using CMYK four-color pigment.

色彩。样张是不是太暗了，太亮了或缺少反差？像白色、灰色和黑色这样的中性区域里是否被印上了我们不想要的颜色？举例来说，应该仔细检查水泥路或柏油路这样的灰色地带，确保它们没有被印上红色、蓝色或绿色等颜色。

Color. Is the sample too dark, too bright or lack of contrast? Are neutral areas like white, gray and black printed with colors we don't want? For example, gray areas such as concrete or asphalt roads should be carefully examined to make sure they are not marked with red, blue or green.

细节。图像高光和暗调部分的细节是否清晰可辨？如果原始图像或原稿本身就缺乏细节，那我们在复制过程中就不必考虑这个问题，但是如果客户拿来的原稿上是有细节内容的，那我们就要把它们保留下来。

Details. Are the details of the highlight and dark part of the image clear? If the original image or manuscript itself lacks details, we don't have to consider this problem in the process of copying. However, if the client brings the manuscript with details, we have to keep them.

莫尔条纹。特别是在拍摄或扫描有图案（纺织纤维或几何图案等）的原稿时，我们就需要对图像进行特殊处理了。有时我们可以在Photoshop里使用“轻微模糊”的选项，以避免莫尔条纹的出现。你可能还要确定自己最不能容忍哪一种情况的出现——是可恶的莫尔条纹还是在模糊处理后损失的图像细节。

Moire fringe. Especially when shooting or scanning the original with pattern (textile fiber or geometric pattern, etc.), we need to process the image specially. Sometimes we can use the "slight blur" option in Photoshop to avoid moire fringes. You may also want to decide which situation you can't tolerate the most - hateful moire fringes or image details lost after blurring.

轮廓图。这是检查图像边缘的一个绝佳机会，无论是你自己创建了它们还是让印刷服务供应商帮你创建了它们。有些在屏幕上觉得可以接受的轮廓到了实际的样张上就不是那么回事了，你可能还要对其进行清理。

Outline drawing. This is a great opportunity to check the edges of images, whether you create them yourself or have a printing service provider help you create them. Some of the outlines that are acceptable on the screen are not the same when they are used in the actual sample. You may have to clean them up.