Resizing images for use on forum

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Rara
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Resizing images for use on forum

Unread post by Rara »

For Those not familiar with resizing an image for a forum this guide
should help.

Size limits for Images are 1600 pixels width or height.

96 DPI is a guide for the resolution and is also what a major social media site uses.

Resizing images to a smaller (file) size will help with the speed of page loading and
overall stability.

For this demo I am using IrfanView 32bit which is a free program, (best downloaded from
the authors website) and a large photo from Nasa's image gallery.

First find the photo you want to use on the forum and open it with Irfan.
the original file size of the photo used in this demo was 3.8Mb
Image dimensions 4928x3280 resolution 300DPI

Once the image is open click "Image" then Resize/Resample

image resize demo picture 01.jpg

A smaller window will pop up with resize options

First check "preserve aspect ratio" is checked

In the box marked "set new size" enter the dimensions for this demo I used 1000 pixels wide.

The height will change automatically to stay in the same aspect
Bottom left of the window is "DPI" Change this to 72 or 96 DPI

"Apply sharpen filter after resample" is optional

image resize demo picture 02.jpg
Once your happy with the result click "File" then "Save As"

image resize demo picture 03.jpg

Type in a file name specific for the topic you are writing about.

In the box on the right hand side set the JPEG "save quality" as 75%

In this demo I used 70%. Uncheck all of the boxes as well, this will help reduce
the overall file size with unnecessary data.
image resize demo picture 04.jpg

After file has been saved, the file size has been reduced considerably
and is still of an acceptable quality for illustrating a topic.

image resize demo picture 05.jpg

This is the result of the above guide files size 47Kb:-)

iss043e059141~resized for demo.jpg

The same image resized to 1600 pixels wide @ 96 dpi saved at a 75% quality = 198Kb

iss043e059141~orig_1600_96_75.jpg

Rara 0-)
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Re: Resizing images for use on forum

Unread post by Saul »

Excellent guide Laura. Many thanks for taking the time to do that. ((i)) ((i)) ((i))


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Re: Resizing images for use on forum

Unread post by Macke »

Nice work indeed Laura. (Y)



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Re: Resizing images for use on forum

Unread post by SysExJohn »

Another nice simple technique for those who still have MS Paint on their PC is as follows:

Start up Paint (you should find it in the Accessories folder in your copy of Windows),
then open the image (jpg) you want to resize.
(By default it will be opened at full magnification, so you will see just the top left corner of the image.)
Like this:

P1000046-resize1.JPG

(I've actually cropped this to fit on the page.)

Notice, in the top left corner, the menu items outlined in Turquoise and the "Resize" item outlined in red.
Clicking on "Resize" will give you the following pop-up menu.

P1000046-resize2.JPG

The magnification is 100% by default but I've changed the horizontal to 20% and the vertical automatically followed suit, because "Maintain Aspect Ratio" is ticked.

The result, processing the initial picture was this:

P1000046a.jpg

Dear old Tigger, flaked out during a heat wave when we lived in Germany.
"The kitchen tiled floor is soooooo cool!"
Aah! I do so miss the dear old chap and it's been more than a year, would you believe, since his passing?

HTH?
JohnG.
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Re: Resizing images for use on forum

Unread post by shelly0624 »

Thank you Laura and also John! (Y)
I needed that.

John;
I've always thought of myself as a dog person.. For one thing, they are childlike and I love kids. One of Andy's fellow soldiers from the Vietnam War was a dog trainer. He said dogs are around a two or three year old level in human behavior or understanding. I don't know if that's true.

But my granddaughter's cat, Cleo, lived with us for awhile. She really worked her way into my heart. Andy's too. Now she lives with my daughter. She is sweet and quiet. She hops up into your lap and rolls herself into a ball. It's almost like cats have an extra sense when you could use a little comforting.
Dogs sometimes climb all over you, but that's their way of saying..
"I love you human!"
But Cleo is really patient with my grandkids. (She gives the baby some space right now). She has a calming effect. I would miss her if anything happened to her. I'm sorry Tigger passed away. That would be a genuine loss. I know that some nursing homes have a resident cat that makes the rounds to visit patients in their rooms. What a great idea.



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Re: Resizing images for use on forum

Unread post by Saul »

Thanks John (Y)

I am definitely a cat person. Always have been, always will be. Dogs are fun but they are like children. Cats are independent and will mostly look after themselves. We don't have a cat at the moment but intend to get two if we ever manage to move from here. I think I have some photos of my cats somewhere...but that's for the cat thread ;)

I forgot to mention another very important reason why we need to keep the image file sizes down. Google search engine LOVES small files. The bigger the file size the more it affects our search ratings.

It's really uplifting to see the way people are helping with the issues on the forum right now. Thanks so much all of you for doing this. ((i)) ((i)) ((i))


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Re: Resizing images for use on forum

Unread post by SysExJohn »

Hi Shelly,

Strange, I 've always thought of myself as a dog person too.
But cats have always been around from as long ago as I can remember.
But Susanne is "just nuts" about cats.

So, about this time of year, a few weeks before her birthday, I said "dear heart, would you like a puddy tat for your birfday?"
To say that I nearly had my hand bitten off is to put it mildly.

The following day, before I had an opportunity to change my mind, we went to a "Tierheim".
An Albert Schweitzer Tierheim.
It means pet home. Where strays etc. are collected.

Susanne started loking for a kitten.
Whilst visiting this "animal" came up to me and started rubbing himself against my legs.
The long and the short of it was that no suitable kitten was available so we took him.
He was described as "sehr Lieb" (very loving) and so he turned out to be.
Susanne always called him a "Daddy's boy".
He was eight years old when we first got him, no spring chicken.
We had him for thirteen years.
He was just always there, and I grew to become so fond of him.

Sadly, because of cancer he had to be put to sleep, but I held him in my arms as they did it.
Farewell old chap, thank you for the privilege of sharing your life with us.

:( :oops: :cry: :cry:

JohnG.

P.S. We posted at the same time, Saul.


UW500; 2 x MU1000 + PLGs AN, DX, VL, VH & PF; SC8850; EWI4000s + VL70m; Samson Graphite 49.
Privia PX-560; AN1x; Novation X-Station 25. E-MU 02 cardbus + 1616m x 2. Finale 26; Sonar 7 PE and CbB.
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