Photoshop needs to know how to jam the pixels together and which ones to throw away when you scale down. It also needs to know how to create pixels when scaling up. This process is called resampling. When you scale an image even by a single pixel, the entire image is resampled or rewritten.
This is why creating the image at the correct size in the first place is great. In order to resample, Photoshop has to do some math to know how to recreate pixels.
This math is called interpolation in-terpol-ation. Interpolation is important because certain types of interpolation will give you better results for different types of images. There were originally 3 types of interpolation in Photoshop here is a non-scientific way for you to look at them. See what features were added in which versions of Photoshop in our free superguides. Automatic is easiest most of the time, but keep reading because it might not best the best option all the time.
You will see a marked improvement in your image sharpness and final quality IF you are using CS6 or the older interpolation algorithms. However, on testing I have found that Preserve Details produces the same result as stair step and I hazard a guess that some of that is built into the newest algorithm.
This was one of the unsung heroes in the first release of Photoshop CC. You can also see me test it on the video above. I have found for upscaling that Preserve Details works really well for for many images, especially line art and graphics images although for simple line art, sometimes bi-linear yields better results.
However, sometimes for photographs bi-linear smoother can produce a more natural although softer results which has less halos and artifacts. You can always apply some sharpening to the result. The results depend on how much you are scaling up the image and also how detailed the image is vs large gradient areas such as skies in photos.
Try a couple of variations to see if you can coax better results out of Photoshop, sometimes you can. Check out this article I made that explains resolution. Ok, if you are still reading you are either a bit more advanced, or hungry to learn all you can. When you are scaling up or down images here are some tips to keep in mind.
I usually do a tutorial each week which has BOTH a written and a video component to it for your learning pleasure. Your time is YOUR most valuable asset. This is why I put together a comprehensive Photoshop course that teaches you A-Z all in 1 place.
I first started this in Photoshop 5 and have re-recodred this course 10 times over the past 17 years, perfecting it each time. I believe its the best way to learn Photoshop and thousands of people would agree with me. All the lesson files are included so you can follow along with me, step by step. Full 60 money back. Grab in the instant Download or DVD right now.
I never knew any of this! I recall some tutorial saying something about Bicubic being a good choice in many instances, but, that was it! LOL Thank you very much! I apologize that a few of the comments have been deleted. Because of some technical problems I had to reupload this page.. Feel free to repost. I had a query we are now living in responsive era, so the images that we use in web are scale up for big screens and the same images are scale down on small device so there an idle option for such situations BiCubic Smoother, Bicubic sharper,etc.
When designing you make the image at the largest size it will be needed, the browser will resize it from there. Its covered in the resizing an Image section Bicubic sharper: Sharpens to bring back lost details while reducing a file. Suppose we have to resize single image which has both small text and picture and the image is scale down on small device and scale up on big device, so is resample the idle option, if yes then under resample which option to consider Bicubic sharper or Bicubic smoother or Preserve detail?
Thanks but i am still facing issue, i created a logo of X but my theme have a logo space for X80, when i save for web devices is blur.. Thanks in advance for your reply! I am entering a photograph into my first competitive exhibition. The image is a composite of 16 individual images stitched together.
The combined image dimensions are: 11, x 18, pixels. I have two tasks to accomplish and I would appreciate your guidance. To submit the image for jury, it needs to be a maximum of 3mb and the shortest dimension must be at least pixels. I am guessing I should resize the image to maximize its quality but your comments about the image becoming soft suggests for such a large resizing the sharpening needs could be significant.
Do you have any suggestions to maximize the quality of this image file beyond the guidance you have provided? If my image is selected, I will need to print for display at the gallery. Given the image is stitched do you know if there is any risk of the boundaries being visible if printed at the max? As a stitched image, would I be wise to engage in some image reduction to maximize the crispness of the composition?
Any guidance would be greatly appreciated. I would ask the printer who is going to print it, what their specs are, they can vary widely, deepening on materials, coating, type of printing etc.
I have never heard the fan run on this thing until now. I am wondering if I make my layers smart objects, then resize the image down to a more manageable file size, will I then be able to enlarge it back up once it is ready to go to the printer without losing quality?
I feel like this should work, especially if I make the current, edited layers smart objects, but kind of want to confirm before I waste 5 hours of work…. But test it. When the web developer resizes it smaller to fit the space provided in our website, the image quality becomes really poor. Because of this, GIFs should never be used for product photos.
Saving Images Properly As can be expected, large images take longer to load. This allows you to view the image at the exact size it will be displayed on a computer monitor when you save the image for web.
A window will appear which will allow you to choose your export quality. Compress Images For Web Image compression apps are the easiest way to reduce the file size of images.
These tools provide a quick and easy way to reduce files size without losing any image quality. We set up a scene, make our salt look absolutely incredible and we take a photo with a DSLR camera. Great we have our photo. What a beauty! But… the file size is HUGE! This is completely unusable right now. At This is no good. We will select JPEG. Advertisement For Image Quality, you have a scale you can select with 5 presets that range from Maximum to Low.
If the image is an extremely important image with a lot of detail, you may want to select a level higher and save at Very High. Essentially, saving for the web is a balancing act — you must balance the quality of the graphics and the file size of the media to suit your personal needs.
When will this change? Where can I download the needed files until then? Learn more about traffic limits. Any suggestions? The above google drive file is great. Thank you. It does not match the list in the article however. If anyone has the chirp file for the list in this article, please share it. Thank you! Here is the. You are commenting using your WordPress.
You are commenting using your Google account. You are commenting using your Twitter account. You are commenting using your Facebook account. Notify me of new comments via email.
Notify me of new posts via email. Program Your Radio Frequencies for Freedom! Be ready for the call! Email Address:. How far will that radio go? Frequencies For Freedom. Program your radio. Be ready for the call. RadioMaster Reports. Skip to content. Whether you have a Baofeng or any other type of radio, these are the communications channels of true patriots… Patriot Radio Channels.
The Radio Plan. Share this: Twitter Facebook. Like this: Like Loading Bookmark the permalink. Snake45 July 5 at Reply. Joe July 27 at Reply. Jerry August 25 at Reply. Christopher Kuehl October 21 at Reply. Christopher Kuehl October 23 at Reply. James Veitch February 14 at Reply. Christopher Kuehl October 26 at Reply. Jerry November 19 at Reply.
Also I used the files from this site and the power settings were correct. Garry K. Thisisme May 2 at Reply. Riobard December 12 at Reply. Rich February 22 at Reply. Peter O'Neill March 20 at Reply. BW September 24 at Reply.
I get this message when I try to download the channel list. Tom November 4 at Reply. Is this file downloadable for anyone else? Steven Fisher December 16 at Reply. Has not worked in a few months now, wish I would have backed up the orginial csv file…. Rick Willoughby January 26 at Reply.
Chris Owen February 8 at Reply. Danup December 27 at Reply. Chris Owen February 4 at Reply. Rick Willoughby February 15 at Reply.
0コメント