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 Post subject: Help needed with Avatar
PostPosted: Thu Dec 11, 2014 12:09 pm 
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I had this problem about 4 years ago and still can't seem to get it right so I need a bit of help here. I want to change my Avatar (I have already deleted the old one so there is no going back now).

I have chosen the pic I want to use and having looked at the Forum instructions I re-sized it, first to 150 x 150 pixels then in increments down to 18 x 20 pixels where the definition became so bad you could not see the content of the pic. Each time I try to upload the pic I am told that the file is too big even the 18 x 20 pixel one. Looking at the pic properties the 18 x 20 version still says it is 22.1Kb which is way above the allowed 9.77Kb so where am I going wrong?

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PostPosted: Thu Dec 11, 2014 12:25 pm 
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Hello - email me the pic and I'll resize for you as well as telling you the problem and how to solve it :)

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PostPosted: Thu Dec 11, 2014 2:16 pm 
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Hello. The problem is with the compression factor used when you save a jpeg file. I've allowed up to 20kB for an avatar now anyway, as 10kB was very small.... but in case anyone wants to know about resizing jpegs, please read on:

Whenever you save a jpeg from a graphic programme you should also see a little "options" box pop up to allow you to adjust the compression amount being used in the file.

Jpeg is a compressed format, because it simplifies the colour gradients in an image. For instance, where two very similar colours are used, it replaces them with one colour, and the image is less detailed. If you compress it greatly, this leads to a very "pixelated" image (even if the actual pixel size stays the same).

A jpeg also stores other image information ("EXIF" information, which is details about your camera settings and date and things) and colour palatte information. All this can be dispensed with for your avatar. Again you should find the options to remove them when you save the image.

I think you are just re-sizing and re-saving using whatever the default compression is. When I do that I also get a file more or less 20kB.

So the steps to get it small are something like this:

1) Open the image
2) Resize the image so the largest dimension is 150 pixels
3) Save-As the image and then select the save options (this example is from software and yours might not look exactly like this, but should be something along these lines). In this one, I have unticked the "save EXIF" box, and unticked the "ICC" box, and also increased the compression a little bit. You'll have to play with the compression results to make sure you are happy with what it ends up looking like.

Here is a "save-as" window showing an example of the options button:

Attachment:
Sample Save Window.jpg
Sample Save Window.jpg [ 47.01 KiB | Viewed 1703 times ]



And here is an example of one software showing the available jpeg saving options. I've marked what I changed in this example:

Attachment:
SaveAsOptions.jpg
SaveAsOptions.jpg [ 30.75 KiB | Viewed 1703 times ]



Using these settings, the avatar shrank to ~6kB:

Attachment:
AVATAR2.jpg
AVATAR2.jpg [ 5.95 KiB | Viewed 1703 times ]


If this is all too much (!), just feel free to email for help at any time (admin@orchidforum.eu).

Thanks!

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PostPosted: Thu Dec 11, 2014 3:32 pm 
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Thanks Rob, in the short term the new avatar is in place and in the longer term I will read through your instructions for future updates.

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PostPosted: Thu Dec 11, 2014 4:05 pm 
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It's a lovely flower by the way! What is it?

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PostPosted: Thu Dec 11, 2014 6:19 pm 
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Rob-Rah wrote:
It's a lovely flower by the way! What is it?



It is Cattleya Ella Lucy Jones (named after my granddaughter). This is my own cross and the subject of the thread I started a few years ago on sowing and germinating seed. I am very pleased with it as I did it all from pollinating through to flowering.

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PostPosted: Thu Dec 11, 2014 6:35 pm 
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Aha! I have one or two of these too, don't I?

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PostPosted: Thu Dec 11, 2014 7:00 pm 
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Rob-Rah wrote:
Aha! I have one or two of these too, don't I?



Well you did have some and you have done well if you still have any alive! The cross is Mari's Song x Chian-Tzy Regalia. I have managed to bloom out three different plants so far with some more still to flower.

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PostPosted: Thu Dec 11, 2014 7:36 pm 
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Yes, I'm sure they are still alive. Though they're not vigorous at getting bigger, they're ticking along and slowly building up.

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Seeking: Aristolochia cathcartii, Encephalartos inopinus, Passiflora incarnata, P. tucumanensis (seeds) Lobelia gloria-montis, L. villosa


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PostPosted: Fri Dec 12, 2014 3:16 pm 
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cricketerry wrote:
Rob-Rah wrote:
It's a lovely flower by the way! What is it?



It is Cattleya Ella Lucy Jones (named after my granddaughter). This is my own cross and the subject of the thread I started a few years ago on sowing and germinating seed. I am very pleased with it as I did it all from pollinating through to flowering.


Wonderful. Congratulations on such a beauty! Very fitting that it is your avatar :)

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