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Forum: Digital Processing, Software, and Printing
12-01-2016, 08:38 AM
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Thank you for your LR resize plugin tip.
I found VSO is very similar quality like LR, same percentage, same results. But it's more convinient. Instead of opening LR which use much more time, I have this little tool every time I want use some of my pics resized. Usually all of them are saved only in highest quality
:)
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Forum: Digital Processing, Software, and Printing
12-01-2016, 03:11 AM
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OK, things are clearer now.
- PPI has nothing to do with image size and quality, it's only order for printer ? So, if I export same pic as 10 ppi, vs 300 ppi, it will not be shown on screen, only on print pic ?
- Resolution is clear
- Quality is compressing - and here I have doubts - what is enough, what is not enough - where is the border ?
LR have by default 60 % - is it enough for most cases ?
I know you can always find some artifacts, but is it visible on 60 %, or perhaps it's visible only at low 20 % ?
In my eyes 60 % vs 100 % have no difference - and I'm scrolling pic as much as I can. In print size this will be even less visible - if it is visible at all - even on screen.
SO; is it 60 % in LR just enough ?
Certainly, I would love to save my pic at MAX QUALITY, but I'm just curios on that, because sometimes I must delivered to clients - very large number of files, and if you have more then 100 of them, it's very convinient to be smaller, rather then larger.
Method I'm using right now is saving my pics in LR at 300 ppi, and 100 % quality - and after that, choosen ones for delivering to client - just resize with VSO Image Resizer ( higly recomended free and very powerfull resize tool )
and I choose ORIGINAL RESOLUTION - QUALITY 70 % .
It downsize my image from 14 MB, to 3 MB, and as I said - pic look preety the same as original. ( or same in my eyes )
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One more tip, now as I mention VSO here. iT HAS also a name LIGHT IMAGE RESIZER. Don't know the difference, I have on my laptop Light Image, and on Desk VSO, but its the same program
I use this tool more then 5 years, and I tried some of "best" resizers on internet . Non of them was nearly so good in exporting quality in small size like VSO. And some of this of the best ones was just disaster in ruining colors, or overall quality. But not with VSO
I have my web, and for my web, I must be at a lower file size. VSO have it's own default profiles which you can change in a manner you want to.
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If you want decrease or increase VSO output quality, file size, picture ratio, algorhytm for compression, even add your watermark,
you will be asked to save changes as your new profile, and from now on, you can just open it, go to your profile click it, and export your pic.
You want add some more pics to this when you finished your first one - just drag and drop all of them into VSO box, and click it again.
File name is the same ? No problem also. VSO will rename it, and you will be ask before.
Very convinient - and high quality tool ! You can have shortcut on right click on image, it can be on desktop, or in system desktop tray.!
After numerous trying to keep smaller picture, and enough quality on it, ( JUST FOR WEB USE! ) I came to perferct measure ( at least for me ) .
IT IS : 1600 x 1200 ( it satisfied most of screen sizes ) ; Quality set : 60 % ; Exif data : NONE ( it will spare more space, and no one would know anything about your picture details )
Picture will be small like 200 KB cca, even less, and quality of file would surprise you !
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by the way - Thank you all on this thread !
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Forum: Digital Processing, Software, and Printing
11-30-2016, 06:45 AM
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so this is throwing away... but not very visible.
If it's not visible for my screen, even full cropped, there is no any chance it will be visible in print , no matter how big it is, because 240 ppi, or whatever you'll set it up, will be the same, and printers numbers of printed dots will also be tha very same.
Are there any need to increase your MB file size to even 500 % more MB , when you need much less ??
Is that the real reason why LR is originally set to 60 %, and 240 dpi ?
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Forum: Digital Processing, Software, and Printing
11-30-2016, 06:00 AM
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Ok, in short
WHERE IS SIZE OF EXPORTED FILE MATTER, WHEN YOU have SAME PIXEL RATIO AND ORIGINAL RESOLUTION ?
This thread is not a thread about MP count, not about physical sizes in microM on sensors, not about resizing picture smaller then original resolution.
I suppose it will be open sort of debate, because I will ask here one maybe hardly answered question.
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OK,
Suppose You export your file in Lightroom, lets say "quality 60 % " , and 240 ppi - which is obvious standard for Lightroorm,
and yet again you export same photo in 100 %, and you leave 240 ppi untouched. Picture will be significantly larger, but yet you will not see any visible difference on your monitor. Or you will perhaps, specially if you have some real HD screens to look at... ?
Let's debate and debunked what we need.
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Same resolution, Picture 4000x6000 = 24 Mpix ( to be clear on this math )
but 100 % Quality vs 60 % Quality does not make any difference on first view. Is the picture quality really intact ??
Size definitively show significant raise - from 3 Mb to even 13 Mb.
But when you examine your pic this is not you will see. You will be ending like -
OK, WHERE THE HELL GOES THOSE MEGABYTES, WHEN I CLEARLY NOT SEE ANY SIGNIFICANT DECREASE or INCREASE IN SCREEN,
EVEN WHEN I SCROLL DOWN MY MOUSE TILL PICTURE ENDS ??
Second,
Let's think about :
What is pixel per inch, and what is pixel resoultion ??
Which size is which size ??
Obviously we're talking about different things, but measurement is not quite clear on this.
Resolution 4000-6000 may came with different measures of ppi . 240, 100, or even higher then 300
I understand physical rule here, but I don't understand all of it obviously. Resoultion is count for pixels, how many of them you deal with.
It's a obvious physic size - Pixel is Pixel, bigger numbers, better zooming in
And this is also called Resolution. in our example 4000 x 6000 = 24 Mpix.
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You came on your export in LR, and see 240 ppi.
qUALITY setting as a third - at 60 %.
You set 600 pixel per inch ( I set numueros of my art pics at ridicoules 600 ppi before ), and what's gone changed here ???
sIze of exported pic? Trully yes ! But picture will again be same at resolution of 4000-6000, and where the is the change then ???
Don't quite get it,
AND LET'S DEBUNKED THIS :)
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