Increase resolution for this pic

hello,

Can someone increase as much as it is possible the resolution of this attached picture please. You can also convert the pictures form Gif to Jpeg if this will help to increase the resolution.

Thank you so much.
Networking.gif
ItaliabellaAsked:
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gplanaCommented:
If we increase the resolution, the quality of the image would be poor.
However, I can convert to jpeg if you want (but it will also lose some quality).
ItaliabellaAuthor Commented:
Gplana, this is what I am trying to accomplish. Increase the resolution of this pic maintaining the quality. I know there are some software that can increase de quality of the picture. I need to post this pic in a website but it's too small ....( the pic is too small)
JohnBusiness Consultant (Owner)Commented:
Networking.jpg
Here is the file . It looks better as JPG
Networking.jpg
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Joe Winograd, Fellow&MVEDeveloperCommented:
Hi Italiabella,

I'm guessing that you want to improve the quality of that image, but increasing the resolution isn't going to do it — nor will converting it to JPG. Here's the info about the image:

image info
As you can see, it is 234x175 pixels; it is compressed (with LZW compression), which makes it lose quality; and the color depth is just 256 (i.e., 8-bit color — for good quality, you want at least 24-bit color). Here's the image with the pixels doubled both horizontally and vertically (so it is 468x350), and converted to JPG:

Networking-468x350
But as you can see, the quality isn't really better. We may be able to make some minor improvements to it using image enhancement techniques, but for a really good quality image, you need to go back to the source and get a much higher quality image from the get-go. Regards, Joe

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Joe Winograd, Fellow&MVEDeveloperCommented:
Italiabella,
Our messages just crossed. If you need more pixels in order to post at the website, I can make it whatever size you want (and I can make it a JPG). Just let me know the horizontal (or vertical) pixels that you want and I'll post the JPG for you. I assume you want to retain the aspect ratio (i.e., keep it proportional), so all I need is either the horizontal or vertical pixels (the other dimension will be sized automatically to retain proper aspect ratio). Regards, Joe
ItaliabellaAuthor Commented:
yes Joe, I am trying to increase the quality of the image so that I can enlarge it without loosing the quality of the picture
ItaliabellaAuthor Commented:
horizontal Joe will be great !
Joe Winograd, Fellow&MVEDeveloperCommented:
Italiabella,
Here's a better quality version of that image:

Networking-400x300-24bit-color
Note that it is a JPG with 400x300 pixels and 24-bit color:

image info better quality
Let me know what horizontal or vertical pixel size you need and I'll post it. Regards, Joe
Dan CraciunIT ConsultantCommented:
@Joe: LZW is used on TIFFs also, and it's a lossless compression:
https://en.wikipedia.org/wiki/Lempel%E2%80%93Ziv%E2%80%93Welch
Joe Winograd, Fellow&MVEDeveloperCommented:
> horizontal Joe will be great !

How many horizontal pixels do you want? The better quality image that I posted above is 400 horizontal pixels. How many do you need in order to be able to post at the website?
ItaliabellaAuthor Commented:
Joe I really don't know ... I need to post it on a website therefore I assume the highest the pixilation is the better quality I get when I upload or enlarge the pic..
Joe Winograd, Fellow&MVEDeveloperCommented:
Good point, Dan! LZW is, indeed, a lossless compression. I had lossy JPG on the brain. :)  Serious brain cramp! Thanks for the correction. Regards, Joe
ItaliabellaAuthor Commented:
Joe Dan you are above my head :) I am lost...:)
Joe Winograd, Fellow&MVEDeveloperCommented:
> I really don't know

You need to find out.

For example, I recently tried to upload an image and received this error message:

image too small
So I had to make the image 888x482 pixels for that particular site. I can make it whatever size you want, but keep in mind my earlier comment — increasing the pixels will not increase the quality.

> Joe Dan you are above my head :) I am lost...:)

Don't worry about it. Not anything you need to be concerned about for the task at hand. Regards, Joe
Dan CraciunIT ConsultantCommented:
Let's talk a bit about the elephant...

A quick search on Tiny Eye reveals that the illustration is from gettyimages.com: http://www.gettyimages.com/detail/photo/computer-network-royalty-free-image/93240443

You're sure you have the right to use it? If you bought it from there then you already have a high res version of it.
Joe Winograd, Fellow&MVEDeveloperCommented:
> Tiny Eye

TinEye
http://www.tineye.com/
Dan CraciunIT ConsultantCommented:
Yup, thanks.
I have the extension, so I don't visit the site. And Tiny Eye sure makes more sense than Tin Eye :)
nobusCommented:
there are softwares around that claim to do it; but i never used them :
http://www.fotor.com/features/one-tap-enhance.html
a free trial :  http://www.photoacute.com/
ashampoo photo optimiser :  https://www.ashampoo.com/en/usd/pin/1157/multimedia-software/photo-optimizer-6
Joe Winograd, Fellow&MVEDeveloperCommented:
Hi nobus,
I haven't used those, but I have used GraphicsMagick to enhance images with some success. I wrote a program called EnhanceImage that runs GM with various parameters (such as contrast, gamma, and quality). It is for a client who uploads images of his products for sale at his website and he is very happy with the enhanced images. It's important to note that he isn't trying to deceive prospective customers with the enhanced images. His strong feeling is that the real products look much better than the photos straight from his camera, whereas the images from the EnhanceImage program look much more like the actual item. Regards, Joe
nobusCommented:
>>  real products look much better than the photos straight from his camera,   <<  then he needs anopther camera, or change the way he takes pictures (other lighting, position, background etc..)
Joe Winograd, Fellow&MVEDeveloperCommented:
The camera is fine — a very high-quality one with an extremely well-known brand name. The issue is lighting. It's very difficult to get adequate lighting based on the nature of the products and where they are stored.
ItaliabellaAuthor Commented:
a lot to lean from you as usual....thank you all.
Joe Winograd, Fellow&MVEDeveloperCommented:
You're welcome...and happy to help you, as usual. :)
JohnBusiness Consultant (Owner)Commented:
@Italiabella - Thanks and good luck with your picture.
nobusCommented:
same here
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