For Blankpage

[Tinka]

Hi, Blankpage,
Here is a screenshot of Paint shop Pro, showing the resample menu in image resize. the box should be UNTICKED when resizing an image, "According to every thing I have read.


There follows a extract from an article in an old copy of "What digital camera"
Hope this is of some help.

The above should apply to PSP as well as PS

[Blank Page]

Re: For Blankpage

Thanks for that, Tinka. I can see how that would reduce jagged lines for printing a photo, which I'm not doing yet. I was wondering about jagged lines in a photo that's been reduced in size for a web page, say, 2000 pixels wide to 700. (I tried what you showed and increased the dpi of a full-sized photo from 230 to 1000. When I reduced the size in pixels to fit in the monitor at 100%, I got the same jagged lines as if I hadn't increased the dpi. Or am I missing something obvious?)

It seems that size in pixels is not the only determining factor in jagged lines. Here's an example. One is a screenshot of a full-sized image opened in Paint Shop Pro and displayed at 24% of its actual size, and shows clean lines. The other has been reduced from its original size and jagged lines are all too visible. Both images are 459 x 614 pixels. It might be a way around jagged lines for web photos, but I can't imagine it's the proper way to do it.

[Tinka]

Re: For Blankpage

Thanks for that, Tinka. I can see how that would reduce jagged lines for printing a photo, which I'm not doing yet. I was wondering about jagged lines in a photo that's been reduced in size for a web page, say, 2000 pixels wide to 700. (I tried what you showed and increased the dpi of a full-sized photo from 230 to 1000. When I reduced the size in pixels to fit in the monitor at 100%, I got the same jagged lines as if I hadn't increased the dpi. Or am I missing something obvious?)

It seems that size in pixels is not the only determining factor in jagged lines. Here's an example. One is a screenshot of a full-sized image opened in Paint Shop Pro and displayed at 24% of its actual size, and shows clean lines. The other has been reduced from its original size and jagged lines are all too visible. Both images are 459 x 614 pixels. It might be a way around jagged lines for web photos, but I can't imagine it's the proper way to do it.

Hi Again Blank page,
As I point out I am still learning myself and generaly follow articles and lessons in a mag or video, so I don't have a definitive answer, perhaps some of the Pro's on the forum can help? "Come on Guys and Gals" however if I look at the 1st image Un-reduced I think I can see "Jaggies" very much finer in detail, and they seem to corespond with the same areas of the more noticeable jaggies in the second reduced image, I have no idea why these are made worse in reduction, are you takeing the image at a low resolution in camera? is it some other setting on the camera, are you useing the finest setting you can and the highest resolution. have you tried printing the image to see if the jaggies reproduce on the hard copy? Sorry I can't help more.
But will try to find out for my own Knowlage as well as others.
Good luck.

[Pops]

Re: For Blankpage

Hi Blank page,
I have been following your exchange with Tinka because I also use Paint shop Pro X.
I copied both of your sample images onto my puter and opened them in PSP.
I cannot work out how you got those jagged lines.
I resized your original myself and increased the dpi to 200. What should happen did happen. Your image pixel size remained at 459 x 614 and the print size reduced to 2.2 x 3.07. (certainly not a reasonable print size) I have attached the image which is now at 200dpi.
Now.....For printing purposes I use 300dpi and it goes like this:
A photograph straight out of my camera is 3888 x 2592 pixels at 72dpi with a given print size of 54 x 36 inches.
I go to resize, uncheck the 'Resampling Using' box, adjust the res amount from 72 to 300. I now have a print size of 12.9 x 8.6 inches but.....the pixel size of the image on screen remains at 3888 x 2592. If I was going to use this image on a website I would do my printing first because to do any more resizing at this point would reduce my printing size, and consequently the quality of the print.
When you prepare an image for printing you only need to be aware of the print size as shown in the resizing window. (just above the resolution amount)
I would not however recommend printing off any image at less than 200dpi. You will severly lose quality. I have attached a 2nd image which will is well worth you copying and keeping for ref.
I'll end it here and wait for you to carry out some trials.

[Pops]

Re: For Blankpage

I missed a bit of important info....
If you are simply displaying your images in a online album, website or indeed in this forum you do NOT need to change the dpi.
72dpi is ok for viewing...you only need to change the dpi for printing purposes.
Also, and I'm sure you already know this, don't mess with your originals. Always work on copies.

[Blank Page]

Re: For Blankpage

As I point out I am still learning myself and generaly follow articles and lessons in a mag or video, so I don't have a definitive answer,

You and me both, brother.

if I look at the 1st image Un-reduced I think I can see "Jaggies" very much finer in detail, and they seem to corespond with the same areas of the more noticeable jaggies in the second reduced image

Yes, I can see them too, but to me they're acceptable, much better than what I got by reducing the photo.

are you takeing the image at a low resolution in camera? is it some other setting on the camera, are you useing the finest setting you can and the highest resolution. have you tried printing the image to see if the jaggies reproduce on the hard copy?

I've checked and double checked the camera settings. It's at the highest resolution possible.

I haven't printed anytning yet so I can't say, but I'll be trying a commercial printer one of these days. I'm going to start with a few test prints just to see the results I get at different dpi settings before I get any final prints done. I'll be using the info you gave in the earlier post, so thanks again for that.

[Blank Page]

Re: For Blankpage

I missed a bit of important info....
If you are simply displaying your images in a online album, website or indeed in this forum you do NOT need to change the dpi.
72dpi is ok for viewing...you only need to change the dpi for printing purposes.
Also, and I'm sure you already know this, don't mess with your originals. Always work on copies.

Right now I'm just concerned with reducing photos for web pages, though as I said to Tinka, I hope to be getting some prints done soon. Thanks for the dpi chart, It's now nestled snugly beside my HTML colour chart.

Someone mentioned in another thread that he makes TIFF copies of his originals for editing and converts the final version back to .jpg. I'm going to try that with my next batch of photos.