Ishowu hd quits as soon as it opens7/13/2023 And there is no way to convert an image file such as PNG or JPEG to a RAW capture format such as Nikon NEF. You could certainly use a variety of different software tools to create a JPEG image based on the PNG, but you may not need to. Tim’s Quick Answer: The Portable Network Graphics (PNG) image format is actually a very good image format that I consider to be (in most respects) better than the JPEG image format. What is it and how do I convert to NEF or JPG? Today’s Question: We had pictures taken at our 50th and the photographer provided them in PNG file format. However, it can be very helpful to ensure that dithering is enabled for any image being adjusted in the 8-bit per channel mode. So, dithering is not necessary for 16-bit per channel images in the context of a normal photographic workflow. Instead of having bands of various shades of gray that are 1/25th of an inch wide, you will have the appearance of a smoother gradation thanks to the dithering. In other words, there will be a series of bands of individual tonal values defining this gradient, each being 1/25th of an inch in size.īy enabling the Dither option (available as a checkbox on the Options bar for the Gradient tool) you can help to create a smoother appearance for that gradient. That, in turn, means that each individual tonal value on the gradient will require just about twelve pixels. If the image containing this gradient is an 8-bit per channel image, there are only 256 shades of gray available to create a white-to-black gradient. For example, let’s assume you are attempting to create a gradient that transitions from white to black over a range of 3,000 pixels, or around 10 inches assuming a 300 pixel-per-inch print resolution. ![]() The Gradient tool is a good example of when dithering can be helpful.Ī gradient by definition is aimed at producing a smooth transition between one value and another. However, for 8-bit per channel images dithering can certainly become a very real concern in certain contexts. More Detail: When you are working with a 16-bit per channel image, dithering is an unnecessary concept. In the context of a gradient, dithering involves the blending of various color and tonal values to help maintain the appearance of a smooth transition. Tim’s Quick Answer: Dithering in the context of a digital image refers to the introduction of “noise” to help prevent issues such as posterization. Today’s Question: What is “dither”, and should I enable this option when creating a gradient in Photoshop?
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