Search the Community

The attached image shows the effect of applying the noise filter to two documents. In both cases the document was a single layer of 50% grey to which I have added noise. The only difference being that document no 1 was 600 x 400px and document no 2 was 6000 x 4000px. The attached image is a screen shot of the lower right corner. Each screenshot represents exactly the same area of the screen with viewed at 100%. In the smaller document the applied noise is (as one would hope and expect) the same as it's preview. However, in the large document the applied noise is completely different to it's preview. It seems to me there are two possible explanations. 1) Noise is generated with a pre-set absolute resolution irrespective of document size and resolution. If this is correct it is going to appear finer as document sizes get larger. Which may be what is happening here. If however this is the case then surely that should be reflected in the preview which it is not. 2) Noise is generated exactly as per preview but is not getting properly applied. Unless there is some other rational explanation here that I am completely missing, it would seem to me that, either way above, AP is not behaving as one would expect.