When it comes to printing, we require all images to be submitted as 8-bit. Unfortunately, the vast tonal range of a bit image is not possible to recreate within our CMYK commercial printing process. Saving your images in 8-bit mode will help ensure the accuracy of your print order. The difference between 8 and bit images is the number of tones available for a color. A bit image is made up of more tones than an 8-bit image. The available negative amount will be calculated from 2 up to the exponent of the bit.
If you want to calculate the tonal range for a bit image, do it from 2 to an exponent of Hence they increase the number of available tones exponentially.
That is, there are tones available for cyan; tones available for magenta; tones available for yellow and available tones for black for CMYK color profile. If you are using an RGB color profile, the image will contain tonal variations for each red, green, and blue. If an image has an 8-bit configuration, it can contain 16,, colors, and if an image has a bit configuration, it can contain 28,,, colors.
When you do not understand about the bit, many people often think that the more tones, the more quality images will be printed out. Enter your email to be sent today's Welcome Gift: 19 Photography Tools. Understanding 8-Bit vs Bit Photos. Table of Contents.
Bits Channel Representation. Twitter Facebook Pinterest. Ana Mireles. Enter your Email Please enter a valid email address. Thanks for subscribing! Please check your email for further instructions. Active Oldest Votes. If your data source has more than 8 bits of color then you can gain benefit from that.
Some of the disadvantages are: Not all filters work in bit mode You use twice the amount of memory with all problems associated with this. Improve this answer. David Kirkland 4 4 bronze badges. Thanks a lot! Shall take the comments into recommendation! I always wondered if this really had a visible effect, so i tried the following: I started out with a 8-bit gradient. For a one-time edit, it's probably not worth it. If you plan on doing extensive editing, it may be worth it, because the sum of the rounding errors will eventually cause significant damage to the image.
Consider these two examples: If you have 10 filters with a 0. That can be the difference between photo-realistic and noticeably "Photoshopped. When a image is not bit natively, such a conversion can be useful if your filter uses intermediate steps with multiplications or other operations that increase the value of the pixel in order to avoid overflows , but usually this is more related to the structure used to allocate the data during the calc.
A bit gradient dithered to 8-bit can mitigate visible banding. Qamre Alam Qamre Alam 11 1 1 bronze badge. So better Images cf or industrial productions are 16bit and above.
Invariant Change 1, 1 1 gold badge 9 9 silver badges 29 29 bronze badges.
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