Photo resolution?

[tea lady]

This ol' chestnut. :C Hubby downloaded a photo resizing program. (Goldberg. ) I wanted something a bit smaller than Photo shop to do the job cos I felt like I was zapping a mozzy with rather out of proportion large gun.:rolleyes: Anyway, so the dimensions can be 1600 wide apparently for jpg files, and 246.5 kb is says on the list (Vague memory of those figures being smaller before but heh! :shrug: ) So what is a good resolution for them? 150 pixels per inch or something isn't it? I keep ending up with postage stamps. :doh:

[BobL]

. . . . . . So what is a good resolution for them? 150 pixels per inch or something isn't it? I keep ending up with postage stamps. :doh:

Programs that work in pixels per inch are confusing and those that refer to resolution in terms of pixels per inch are just plain wrong. Resolution is just the absolute number of pixels wide and the number high. See if you can find a program that works in absolute pixels.

[steven]

Easy Thumbnails does a good job, its also free http://www.fookes.com/ezthumbs/.

[tea lady]

Programs that work in pixels per inch are confusing and those that refer to resolution in terms of pixels per inch are just plain wrong. Resolution is just the absolute number of pixels wide and the number high. See if you can find a program that works in absolute pixels.:think: It does have absolute pixels, but it doesn't seem to do the same thing twice. :? Then if I "save as" it makes the size smaller again for some reason.:gaah: Maybe I need an aplication SLIGHTLY bigger than this one. Any suggestions?:U

[BobL]

:think: It does have absolute pixels, but it doesn't seem to do the same thing twice. :? Then if I "save as" it makes the size smaller again for some reason.:gaah: Maybe I need an aplication SLIGHTLY bigger than this one. Any suggestions?:U

Probably there is a leetle box somewhere that is clicked that says to use the pixels per inch instead of abasolute pixels. If not you need to find out the display resolution of your screen (#Pixels wide and divide that by your actual screen width) and work to that many pixels/inch.

[tea lady]

Probably there is a leetle box somewhere that is clicked that says to use the pixels per inch instead of abasolute pixels. If not you need to find out the display resolution of your screen (#Pixels wide and divide that by your actual screen width) and work to that many pixels/inch.:hmm :Might have to wait till Hubby is home. :C I hate that.

[tea lady]

Easy Thumbnails does a good job, its also free http://www.fookes.com/ezthumbs/.Ooooooooh! That looks kinda cool. Can resize 'em in batches and all. Will still have to wait for Hubby. I'm such a 'puter nube. :sigh:

[ubeaut]

Just upload as an attachment and vBulletin will do the job for you. Takes a while to upload and convert but it's all done and you don't need a program to do it for here.

You caqn evfen upload directly from your camera if you want to.

Just don't go trying to put a 1600px wide pic in your post or it'll be deleted almost immediately.

:U

[tea lady]

Just upload as an attachment and vBulletin will do the job for you. Takes a while to upload and convert but it's all done and you don't need a program to do it for here.

You caqn evfen upload directly from your camera if you want to.

Just don't go trying to put a 1600px wide pic in your post or it'll be deleted almost immediately.

:U:? Now I'm confuzzled. I thought we had to resize them. :hmm:

[steven]

:? Now I'm confuzzled. I thought we had to resize them. :hmm:

Its best to because large photos take a long time to upload.

[chrisb691]

Tea Lady,

I'm running MS Windows, and use Image Resizer from MS. Once installed, it is very easy to use. Right click the photo, and select 'Resize Pictures' from the popup menu, and select the size you want. It then resizes, and also reduces the file size to below the forum limit. I size mine to 800X600 for the forum, and have never had an issue. You can find it here. (http://download.cnet.com/Image-Resizer-Powertoy-for-Windows-XP/3000-18487_4-10905400.html)

[DJ’s Timber]

Tea Lady,

I'm running MS Windows, and use Image Resizer from MS. Once installed, it is very easy to use. Right click the photo, and select 'Resize Pictures' from the popup menu, and select the size you want. It then resizes, and also reduces the file size to below the forum limit. I size mine to 800X600 for the forum, and have never had an issue. You can find it here. (http://download.cnet.com/Image-Resizer-Powertoy-for-Windows-XP/3000-18487_4-10905400.html)

No good in TL's case as she is on one of those strange and inferior machine called a MAC :U

[DJ’s Timber]

Apart from that I thought Mac's had an inbuilt program to do this, pretty sure some one mentioned that here once.

[chrisb691]

No good in TL's case as she is on one of those strange and inferior machine called a MAC :U

Oh dear.......the poor girl.:)

[tea lady]

Ooooooooh! That looks kinda cool. Can resize 'em in batches and all. Will still have to wait for Hubby. I'm such a 'puter nube. :sigh:
This is an MS program and hubby doesn't want to install it on here. :C

What I'm having trouble with is that I tell the resizer to make the pic 800 pixels by whatever wide, but I can't tell it I want a file size of 100kb. Not directly anyway. :C I have to use a quality slide bar thingy that doesn't tell me how big the file is until after its doesn the saving. :doh: Stupid 'puters. They only do whatever you tell tem too. :rolleyes: (I'm gonna have to get graphic converter again aren't I .:rolleyes: )

[steven]

This is an MS program and hubby doesn't want to install it on here. :C

What I'm having trouble with is that I tell the resizer to make the pic 800 pixels by whatever wide, but I can't tell it I want a file size of 100kb. Not directly anyway. :C I have to use a quality slide bar thingy that doesn't tell me how big the file is until after its doesn the saving. :doh: Stupid 'puters. They only do whatever you tell tem too. :rolleyes: (I'm gonna have to get graphic converter again aren't I .:rolleyes: )

Hi there

I wasnt aware you used a mac :oo:

Have you tried uploading any photos to the forum yet? maybe give it a crack and see what happens

regards

[tea lady]

Hi there

I wasnt aware you used a mac :oo:

Have you tried uploading any photos to the forum yet? maybe give it a crack and see what happens

regards

I use a Mac because I am astute..and very Clever......and don't have a virus of any sort!!

(I only use a Mac because that's what Hubby has.:D)

here is a crack at a pic.

Edited Post: watson has been here

[mic-d]

TL, I use smallimage2 (http://www.macupdate.com/info.php/id/17125) on a mac. It works very nicely.

Cheers
Michael

[Master Splinter]

:C I have to use a quality slide bar thingy that doesn't tell me how big the file is until after its doesn the saving. :doh: Stupid 'puters. They only do whatever you tell tem too. :rolleyes: (I'm gonna have to get graphic converter again aren't I .:rolleyes: )


Not knowing how big the file is because the computer itself doesn't know, until you actually tell it to save the image.

JPG compression used in photos is what is called 'lossy' compression - in order to achieve small file sizes, information has to be permanently and irrecoverably removed from the picture.

Since every picture compresses differently, it's not really possible to predict the file size ahead of time - the only way to do it is to run the compression algorithm...which takes just the same amount of time as some sort of 'previewing' option.

If your 'preview' option was aiming for a target size, you'd need to run a whole stack of possible sizes to gradually narrow down to the desired size, which is computationally intensive and would make for a slow preview option.

The technique that I've found works well enough for me is to resize pictures so that the longest side of the pic is between 10 - 15cm, at a resolution of 96dpi. This will generally give a pic somewhere between 30-100k.

[tea lady]

Thanks Splinter. That's kinda understandable.:D I'lll just muddle on then.

Watson, What did you do? Does that mean my crack didn't work?:C

[tea lady]

Its alright Watson. I re Read my post. That is much better.:cool::D

[watson]

Too much time on my hands :rotfl:
I used to use Mac Image Resizer.....a freebie download......but since the upgrade....nothing.

[joe greiner]

Test of skin dependency on quotes:


I use a Mac because I am astute..and very Clever......and don't have a virus of any sort!!

(I only use a Mac because that's what Hubby has.:D)

here is a crack at a pic.

Edited Post: watson has been here

Hmmm.

Cheers,
Joe

[watson]

:U Joe's got a job on CSI Miami

[joe greiner]

I've used the text colour trick on some older posts, but wasn't sure (and still not sure) how they behaved when quoted. Archived material seems to be plain black on white.

With so many optional skins, hidden text probably isn't always hidden.

Cheers,
Joe

[Paul39]

I use a Mac because I am astute..and very Clever......and don't have a virus of any sort!!

(I only use a Mac because that's what Hubby has.:D)

here is a crack at a pic.

Edited Post: watson has been here

Looked good small, looked good when clicked on.

Keep doing what you did.

[tea lady]

Looked good small, looked good when clicked on.

Keep doing what you did.:cool: