Guests - If You want access to member only forums on HSO. You will gain access only when you sign-in or Sign-Up on HotSpotOutdoors.

It's easy - LOOK UPPER right menu.

Sign in to follow this  
Followers 0
RBuker

Change in resolution

11 posts in this topic

Pardon the ignorant question but I don't understand a lot about this stuff.

I enjoy the heck out of taking pictures. I have a 12 megapixel camera that takes great pics when I look at them on the monitor or print them out. But, when I go to email them or post them on a board like this, they are no where near as sharp. Is there a way to change the size without lowering the resolution when I email them? I don't want to send people 6mb pics but I hate to lose the quality.

Here's an example. It is crystal clear in the original.

pelican.jpg

Share this post


Link to post
Share on other sites

hhmm perhaps your email automatically sizes the images for you?

I always make the image smaller to send email style,, and they appear clear (although nowhere near what a RAW image might be) but it suffices.

is it as simple as the "file size"? and not the resolution.. I'm not too sure,, sorry I can't help more

Sue

Share this post


Link to post
Share on other sites

RBuker,

Resolution might add detail, but it can't add sharpness, they're different things. Resolution adds the detail that lets us recognize features. Sharpness makes edges clear and distinct. Resolution is a measure of how many dots of information occur in a square inch (dpi) and is normally used when printing. A typical computer screen has a dpi of 72. There is no advantage to having a large resolution file displayed on a web site, it only takes a viewer longer to see the file load in their browser.

Image physical size is how wide and high an image is - measured in pixels. The bigger the physical size, the larger the file size will be and the longer it will take to download on a web page.

So to answer specifics you can safely make your resolution smaller (72dpi) but when you do that you will need to apply some form of sharpening to that file. The change in resolution causes some loss of detail that you can add back in when you post to the web. I don’t know what you use for software but most programs will allow you to sharpen.

Does that help?

Share this post


Link to post
Share on other sites

It helps a little bit. All I know is that the pictures I take directly from the camera look a whole lot better than the images I email to friends. It frustrates the heck out of me...

Share this post


Link to post
Share on other sites

Your image hosting site is likely downsizing your images when you post them to a forum like this, that will cause some softening of your images. You need to have some type of editing program to add some sharpening back into your images so they appear sharp when displayed here.

Your camera likely has some software included, there are a few free programs that are available or you can pay for some commercial software.

As far as e-mailing goes I don't know what you use but I am guessing you can't really e-mail a 12 mp size file. Most e-mail programs have limits on the size of the file and the amount of data to transfer. If you try and e-mail ten, 12 mega pixel files you are trying to move 120mp of data! Does your e-mail program compress your files? Compression will also soften your images.

Share this post


Link to post
Share on other sites

Dbl,

I'm guessing you are right on all counts. I'll have to look into my software to "sharpen" the pics before I email them or upload them to photobucket.

Thanks again

Randy

Share this post


Link to post
Share on other sites

RBuker,

Resolution might add detail, but it can't add sharpness, they're different things. Resolution adds the detail that lets us recognize features. Sharpness makes edges clear and distinct. Resolution is a measure of how many dots of information occur in a square inch (dpi) and is normally used when printing. A typical computer screen has a dpi of 72. There is no advantage to having a large resolution file displayed on a web site, it only takes a viewer longer to see the file load in their browser.

Image physical size is how wide and high an image is - measured in pixels. The bigger the physical size, the larger the file size will be and the longer it will take to download on a web page.

So to answer specifics you can safely make your resolution smaller (72dpi) but when you do that you will need to apply some form of sharpening to that file. The change in resolution causes some loss of detail that you can add back in when you post to the web. I don’t know what you use for software but most programs will allow you to sharpen.

Does that help?

I'm not sure it helps RBuker, but it has explained a lot to me! I was hoping someone would come through with a good answer to his question. Thanks.

Share this post


Link to post
Share on other sites

Ok, I thinkI get it. This is a copy of the same pic as above but adjusted and sharpened.

100_0513.jpg

Here's another.

100_0496.jpg

Share this post


Link to post
Share on other sites

Very nice shots and the post processing sure makes the pop off the screen.

Thanks for asking the question - even though I either knew or had heard most of the answer previously, I'm always appreciative of the reminders! T

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0



  • Posts

    •   (Really needs to pay more attention to what the trulolo singer is actually saying..)      
    •   Because you have an affinity for such things??..    No, seriously, you need to take a good look at your browser's advanced settings.  Some browsers can be set so they will automatically wipe your cookies and search history every time you shut the browser down.  Not sure which browsers have this capability, but the one I use is Epic.    
    •   If we retrace what happened to get Obamacare passed in the first place, we need to remember the narrative that was used by the Democrats that there were 49 million Americans with no insurance.  Now they are saying 24 million Americans will lose their insurance if the law is struck down.  So I'm taking that to mean they actually got 24 million people to sign up in the exchanges under the law after 7 years.  So about as "successful" as the REAL ID Act...   Between the healthcare industry, big pharma, and the insurance industry, somewhere between $300 and $400 million was spent in lobbying to get the ACA passed.   The Koch brothers are pledging $300 to $400 million in the 2018 election cycle to strike the legislation down, and have also stated they will not support any politician in the future who votes for Ryan-Care.   It's how things work in the real world, like it, or not....
    •   Can anyone explain why I get ads here for dating sites with a picture of a big busted older woman   or Russian and oriental girls looking for marriage when I don't even go on those sites?
    •    In a  free market, ObamaCare would have collapsed two years ago. And all the promises made regarding it are and have been falling apart.   But government does not let boondoggles collapse. ObamaCare will be funded, unfortunately, with more debt and printing to keep it and all it's problems on life support   Think "too big to fail" and QE    
    •   Nunes Backs Down From Assertion Trump Was Monitored   Keep reading your fake news Uncle Bill. Also Nunes canned the next committee hearing on Russia. He is basically a Trump crony at this point, trying his best to obstruct the committees investigation.   There's Trump's transition team. Now go back and watch the Comey hearing. I think you will hear a certain 2 GOP representatives who are only worried about who is leaking intelligence rather than what the intelligence says (or literally the exact same thing Trump says).
    •   They could for example sell the information to your insurance company that would promptly adjust your rates if you showed a tendency toward unhealthy behaviors. It doesn't take much imagination.   There is actually a plan to fight this one. The goal is to crowd source some funding, then purchase the data for congressmen and publish them all to the public.     
    • Ah......the wet dream again.  To make varsity, you have to keep your material fresh and creative. While everyone else is playing Chess, you are still playing Boggle.
    • Maybe you could ask Rick for some HSO decals to go on the front of those bad boys eh?    All kidding aside, nice work.
  • Our Sponsors