求翻译：比以前在照片上直接拼合然后翻拍、修改底片的做法，在拼接痕迹、边缘修饰、色调统一等方面有了实质性的提高，因此被广泛地应用，成了当前造假的主要形式。是什么意思？

Than before, and then put together in the photo directly Copy, modify the negative approach, the stitching marks, edge modification, uniform color and other aspects of a substantial increase, it is widely used, has become the main form of the current fraud.

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Compared to before direct joining together then rescreens, revises the negative in the picture the procedure, in aspects and so on splicing trace, edging, tone unification had the substantive enhancement, therefore widely is applied, has become the main form which current creates a false impression.

Photos than before flattening and then directly on the revamped, modifying negative approach in such areas as stitching marks, edge decoration, tonal unity has been substantially improved, so it is widely used, became the current main forms of fraud.

Going all out to defeat at the photo directly shutting than in the past, then looked through the method to take, revise film, have substantive improvement in concatenation trace, such respects as the edge is decorated, the tone is unified, so widely application, have become the main form of making t