Sharpening là một khía cạnh quan trọng của việc chuẩn bị hình ảnh của bạn cho sản lượng và có tầm quan trọng đặc biệt cho các nhiếp ảnh gia thiên nhiên, những người thường quan tâm đến việc duy trì chi tiết tối đa hình ảnh của mình. Nó không phải là một cách để làm cho người nghèo trong máy ảnh kỹ thuật, và bạn không thể thực hiện một hình ảnh mờ-tack sắc nét | image. Of course you can reduce the opacity of the brush to partially reveal the noise reduction in other areas of the picture. Note As with most tasks in Photoshop there are other ways to go about noise reduction. Some people find it helpful to duplicate the image layer blur it and then reduce the opacity of the layer to taste. This option may work with a particularly high-noise image but you ll also need to add a layer mask to remove the blurred effect from areas needing fine details. Another way of reducing bothersome noise is to duplicate the Background layer blur it and change the blending mode to Color. For Photoshop Elements Users Removing Noise Using a Mask To apply noise reduction with a layer mask in Elements you will need to use the same technique we ve used in previous chapters to create a layer mask. Follow these steps 1. Duplicate your image layer by dragging its row in the Layers panel to the New Layer button. 2. Add a Levels adjustment layer and leave it empty. 3. Move the Levels adjustment layer below the layer you created in Step 1. 4. Select the topmost layer and choose Layer Group with Previous. 5. Select the topmost layer and apply noise reduction. 6. Select the Levels adjustment layer s mask and paint in black to remove the noisereduction filter. 403 OUTPUT WORKFLOW Try It Practice removing noise from your photos by opening the image Noise on this book s companion website go photoshopnature and applying the Reduce Noise filter to it. Sharpening Sharpening is an important aspect of preparing your image for output and is of particular importance for nature photographers who are often concerned with maintaining maximum detail in their images. It s not a way to make up for poor in-camera techniques and you can t make a blurry picture tack-sharp. However you can compensate for the small amount of softening that occurs in the digital process by applying a sharpening filter and or increasing detail. Sharpening filters enhance edge .
