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Thread: Useful basics

  1. #1
    Moderator Sam_Zen's Avatar
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    Default Useful basics

    IrfanView Tutorials by Bhikkhu Pesala.

    Uitgebreide uitleg over IrfanView door Sjef van Egmond
    Last edited by Bhikkhu Pesala; 08.02.2012 at 07:55 AM. Reason: Corrected or removed broken links
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    Rest In Peace, Sam!

  2. #2
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    Hi Sam

    Can I add this one to your list of tutorials: http://uk.youtube.com/watch?v=ax9u8_ZOb9U

    I've just added it onto YouTube and thought some people may find it useful.

    I'd be interested in knowing what you think as it's the first ones we've really done of these.

    Karen

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    Moderator Sam_Zen's Avatar
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    Sure you can add this, it's great.
    I understand that this is a production to cover lots of options of IV in one take, so maybe for beginners it goes a bit fast.
    This has great potential in explaining things beside an HTML-page, so I wonder :
    How did you manage to construct this FLV-file, which tools were involved in this process ?
    Last edited by Sam_Zen; 29.05.2008 at 04:01 AM.
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    Rest In Peace, Sam!

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    Plugin Author MItaly's Avatar
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    I'm having a look at your tutorial (in particular at the IrfanPaint section, obviously ), and I find it quite impressive: the explanations are clear but accurate, really a great work, I may link it in the manual of IrfanPaint.
    By the way, there are some imprecisions:
    • page 31, paragraph 3.2.3, red box on the top of the page; the points 2 and 3 are wrong, if you save an image or change tool the backup image used by the eraser is preserved. The backup image is updated only when IrfanView alters completely the image, reallocating it somewhere else in memory. This happens usually when a new image is loaded, or when the current one is changed in size or color depth (note that one or both things happen when you rotate an image).
    • Page 31, paragraph 3.2.5, the promised screenshot is missing.
    • Page 32, paragraph 3.2.7
      To remove the just-drawn line, Right-Click the mouse.
      This is a bit misleading, since the line isn't drawn yet; the right mouse click just aborts the line creation process before it completes.
    • Page 33, paragraph 3.2.11, red box
      Tolerance can be changed from the value 0 (at which point the Floodfill Tool will not fill)
      This is slightly wrong, tolerance 0 fills only the pixels nearby the clicked pixel with exactly the same color of it.
    • Page 33, paragraph 3.2.13; I'd have described the tool and its use a bit more deeply, considered how you explained extensively even the simplest tools.
    • Page 34, paragraph 3.2.17; the (i) button doesn't show the version of IrfanView, but the version of IrfanPaint, i.e. the painting plugin. They are quite different (IV 4.25, IP 0.4.13.67).

    For the buttons without tooltip, thank you for pointing it out, it should be a small bug that I'll fix in the next version.
    If you want to send me the extended version of the IrfanPaint section of the guide I'll be glad to have a look at it too.
    ---EDIT---
    The tooltips problem was visible with IV+IP executed under Wine, but on Windows XP there's no problem, and I don't see flaws in the tooltip code... do you confirm that on your machine some tooltips aren't shown?
    Last edited by MItaly; 14.10.2009 at 09:29 PM.
    IrfanPaint developer
    The latest stable IrfanPaint version is the 0.4.13.70.
    IrfanPaint is now open-source (released under BSD license).

  5. #5
    Moderator Bhikkhu Pesala's Avatar
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    This looks great, and will be in heavy demand I suspect.
    Quote Originally Posted by WellOiledPC View Post
    I have written an 80-page Tutorial for IrfanView 4.25, available at either of the following two links:
    The files seem to be identical, at least in file size, so why the different names? People will download them both, thinking them to be different documents.

    You could save yourself a lot of bandwidth by reducing the PDF file size. I opened the PDF in PagePlus and published it to the Web Normal profile (150 dpi graphics), and the file size was reduced from 3.25 Mbytes to 1.74 Mbytes. No doubt you could do a lot better, working from the original source files.

  6. #6
    Multiple User WellOiledPC's Avatar
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    Quote Originally Posted by MItaly View Post
    I'm having a look at your tutorial (in particular at the IrfanPaint section, obviously ), and I find it quite impressive: the explanations are clear but accurate, really a great work, I may link it in the manual of IrfanPaint.
    By the way, there are some imprecisions:
    • page 31, paragraph 3.2.3, red box on the top of the page; the points 2 and 3 are wrong, if you save an image or change tool the backup image used by the eraser is preserved. The backup image is updated only when IrfanView alters completely the image, reallocating it somewhere else in memory. This happens usually when a new image is loaded, or when the current one is changed in size or color depth (note that one or both things happen when you rotate an image).
    • Page 31, paragraph 3.2.5, the promised screenshot is missing.
    • Page 32, paragraph 3.2.7

      This is a bit misleading, since the line isn't drawn yet; the right mouse click just aborts the line creation process before it completes.
    • Page 33, paragraph 3.2.11, red box

      This is slightly wrong, tolerance 0 fills only the pixels nearby the clicked pixel with exactly the same color of it.
    • Page 33, paragraph 3.2.13; I'd have described the tool and its use a bit more deeply, considered how you explained extensively even the simplest tools.
    • Page 34, paragraph 3.2.17; the (i) button doesn't show the version of IrfanView, but the version of IrfanPaint, i.e. the painting plugin. They are quite different (IV 4.25, IP 0.4.13.67).

    For the buttons without tooltip, thank you for pointing it out, it should be a small bug that I'll fix in the next version.
    If you want to send me the extended version of the IrfanPaint section of the guide I'll be glad to have a look at it too.
    ---EDIT---
    The tooltips problem was visible with IV+IP executed under Wine, but on Windows XP there's no problem, and I don't see flaws in the tooltip code... do you confirm that on your machine some tooltips aren't shown?
    Hi MItaly, Thanks man! Coming from you, I treasure your feedback!

    For some reason, I was unable to log into the IrfanView Forum for nearly a week - was able to log in just today...

    You are totally welcome to use the Help Manual in any way you want to! I'll look at each point you have mentioned and correct them at the earliest! Cheers!

  7. #7
    Multiple User WellOiledPC's Avatar
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    Quote Originally Posted by Bhikkhu Pesala View Post
    This looks great, and will be in heavy demand I suspect.

    The files seem to be identical, at least in file size, so why the different names? People will download them both, thinking them to be different documents.

    You could save yourself a lot of bandwidth by reducing the PDF file size. I opened the PDF in PagePlus and published it to the Web Normal profile (150 dpi graphics), and the file size was reduced from 3.25 Mbytes to 1.74 Mbytes. No doubt you could do a lot better, working from the original source files.
    Hello Bhikkhu, Thanks!

    Yes, the files are 99.99% identical - the version on my website only has a few cosmetic changes. Hopefully people will not download from both locations - both Irfan and I have stated clearly that the other link is an 'alternative download...' Your point is valid though, I shall rename my version so that it is identical in name to the version on irfanview.com.

    There are about 500 downloads in a month from my website, guess (and hope!) it is a lot more from the Irfanview website...

    Initially, I used PDF995 to create the PDF, but found that the links (neither the Table of Contents or the website links) work. So finally, I used the 'Save As PDF' feature in Office 2007, which is probably why it is double in size. Will try PagePlus, if the links work, I'll use it for the next version!

  8. #8
    Professional User Mij's Avatar
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    Default Response to WellOiledPC

    Quote Originally Posted by MItaly View Post
    page 31, paragraph 3.2.3, red box on the top of the page; the points 2 and 3 are wrong, if you save an image or change tool the backup image used by the eraser is preserved. The backup image is updated only when IrfanView alters completely the image, reallocating it somewhere else in memory. This happens usually when a new image is loaded, or when the current one is changed in size or color depth (note that one or both things happen when you rotate an image).
    with exactly the same color of it.
    MItaly. I know that you promised to put it right way back when but the problem is still there in IrfanPaint where the original backup image is lost whenever the standard Undo (Ctrl+Z) is used. Easy to forget about when you change to and work with a different tool.

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    Professional User Skippybox's Avatar
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    Here, in fact:

    Quote Originally Posted by Mij View Post
    I have been trying to teach some people how to use the clone tool, so there are a lot of mistakes to undo. The right-click eraser feature to restore to the original is brilliant and works fine until they use Undo. Undo causes a new original to be saved, so they can no longer use the eraser to correct any mistakes made earlier.
    I realize this is the way IrfanView works so cannot blame IrfanPaint, but can anyone suggest a way of getting the original original back in to the undo buffer when this happens?
    I am getting to the point of forbidding them to use Undo at all.
    Quote Originally Posted by MItaly View Post
    Your point is right, I too had some troubles with this behavior; I'll fix it in the next version.

  10. #10
    Plugin Author MItaly's Avatar
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    You're right, I completely forgot, probably because now I work almost always on Linux and I use IP rarely. Re-added on the TODO list.
    Anyhow, the problem is not so simple to solve, because all IP can see is that the internal DIB is replaced with another one, and this can happen for many different reasons (e.g. the ones that I posted before).
    Last edited by MItaly; 23.10.2009 at 12:20 PM.
    IrfanPaint developer
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    IrfanPaint is now open-source (released under BSD license).

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