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Photo compression tricks T610/T616 |
Ramsos
Joined: Nov 03, 2003
Posts: 11
From: Oakland California, USA
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First off hello everyone this is my first post to this board and I would like to tell everyone thankyou because I have learned a lot here, and I have had most of my questions about this phone answered by simply searching this site. I am about to purchase a T616 which is basically an American version of the T610, and like most newbies I'm concerned about storage on this phone (2mb) I have already seen many post about aboot master resetting and the 13 second trick for freeing up space. My question is about compressing photos taken with the communicam and pre-existing photos from my mac, I have photoshop and I have been playing around with compressing jpegs at three different resolutions 288 x 352 large size, 120 x 160 small size and 106 x 81 for the picture phone book. At 288x352 I am able to make a decent looking jpeg at about 12kb and at 120 x 160 8kb and at 106 x 81 4kb, so here is my point at these file sizes I could fit a lot of images on the phone, but I read somewhere in this forum that if you take pictures with the phone and send them to your computer then compress them and send them back to your phone they still take up about 50kb each, is this true? How can this be true? I hope its not because at 8-12 kb each I could fit a heck of a lot more pics on the phone than at 50kb each. I don't have the phone yet so I can't test this for myself so any help would be appreciated, regardless of the answer to my question I will still be purchasing this phone. Thank you in advance.-RAM |
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dantec
Joined: Mar 02, 2003
Posts: 264
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Tried this, with graphic converter on my powerbook, but I have a feeling graphic converter didn't actually do anything...
So my results are useless. But if you send me the pics, or PM me, I can try and let you know... |
Ramsos
Joined: Nov 03, 2003
Posts: 11
From: Oakland California, USA
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I can send you a pick to try in fact I can host it on my website and send you a link so you don't have to give me an email address. I will do this in the next few minutes and you can respond in the thread or a pm which ever you prefer thanks. Give me just a few minutes less than ten.
Here it is.
http://www.highsiden.com/NewFiles/image%20jpegs/largesize.jpg
that is the large size at 20 kb
http://www.highsiden.com/NewFiles/image%20jpegs/Sm.jpg
thats small size at 8 kb
http://www.highsiden.com/NewFiles/image%20jpegs/phonebooksize.jpg
thats phonebook size at 4kb
Please let me know the resulting file sizes
[ This Message was edited by: Ramsos on 2003-11-03 05:41 ] |
Drevor
Joined: Sep 25, 2003
Posts: 20
PM |
... quoting myslef sucks ... ah .. whatever:
Quote:
| just a tip for all "Themers" out there .. the T610 seems to use some kind of RLE kompression .. therefore using LESS Colors and optimizing them using "Octree" optimization helps saving memory-space ...
manual partial color resampling will also help like i did with the screensaver ... i masked the background and sampled it down to 14 colors ... then pasted the original foreground and sampled the whole picture down to 127 colors ... Octree again!
just a little comparison:
as a JPEG the picture took 65kByte (on my T610)
GIF using 128col Octree opt. - 39kByte
GIF using manual & octree optimizaton - 34kB |
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add#1: my testpic sized 128x160
add#2: SE stores the original file, the recompressed image AND a thumbnail
add#3: image editing seems only enabled for palette based images
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Ramsos
Joined: Nov 03, 2003
Posts: 11
From: Oakland California, USA
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I don't mean to sound stupid but what is octree? |
wrath000
Joined: May 14, 2003
Posts: > 500
From: Norway
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Unfortunetly this will have little effect on the image size in the phone. The phone stores a second copy of the image in some kind of raw format. That's what responsible for the ~70% of the actual file size you get on the phone...
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Ramsos
Joined: Nov 03, 2003
Posts: 11
From: Oakland California, USA
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So are you saying that if I send a picture to the phone from my computer that is 8kb it will show up on the phone as a lager file because of the second image the phone creates? Even if that's the case I would think making the files smaller would save some amout of space, meaning if I send a pic that is 40kb and another that is 8kb would'nt the 8 kb file take up less space on the phone, of course it would be larger that 8kb because of the second file the phone generates, but still it should be smaller that the 40kb file that was sent right? At least I hope so, I am trying to have the maximum amount of picture storage possible. I waould like to have 2 or 3 themes, 10 ringtones. 1 screensaver, 3 games, 10 pictures for the phonebook at all times (picture caller I.D.) and a good amount of pictures and space to take a few of shots if I choose to. Am I being realistic or am I not going to get anywhere near my goal with this phone? |
wrath000
Joined: May 14, 2003
Posts: > 500
From: Norway
PM |
You can save up to 10% by doing some heavy jpeg compression, the quality loss would be noticeble though
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Ramsos
Joined: Nov 03, 2003
Posts: 11
From: Oakland California, USA
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So is this possible? "I would like to have 2 or 3 themes, 10 ringtones. 1 screensaver, 3 games, 10 pictures for the phonebook at all times (picture caller I.D.) and a good amount of pictures and space to take a few of shots if I choose to. Am I being realistic or am I not going to get anywhere near my goal with this phone?" |
kieboy
Joined: Jun 07, 2002
Posts: 200
From: SE World
PM |
In my case, I've compressed my pictures for as low as 7kb each. What I only use are these sizes: 128x160 - for screensavers & 120x120 - for contact pics, i dont use the 106x81 dimension. With 120x120, the pic is perfectly shaped with the size of the square menu that pops up when you receive a call or a text message.
How to compress? I use photoshop and use save for web...around 60-80% quality is enough to produce a clear pic.
~  P910i ~ P910i Freak! |
Ramsos
Joined: Nov 03, 2003
Posts: 11
From: Oakland California, USA
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^So are you saying the the pics only used up 7 kb each on your phone after they were transfered? Or were they 7 kb on your computer then after the tranfer they actually took up about 50 kb of your phones memory? How many pics do you have on your phone, also how many ringtones and games? Can anyone answer this? Please! |
dantec
Joined: Mar 02, 2003
Posts: 264
PM |
Ok my results (just pm'ed ramsos) :
Alright so the d/l sizes from Safari are as follows :
sm.jpg - 7.7kb
phonebooksize.jpg - 2.7kb
largesize.jpg - 17.2kb
What phone picture info says :
sm.jpg - 7 kb
phonebooksize.jpg - 2 kb
largesize.jpg - 17 kb
Ok now what memory status says menu from the phone says :
sm.jpg - 45kb
phonebooksize.jpg - 19 kb
largesize - 56kb
So to recapituale :
The phone info is the 'real' image size transfered back and forth from the comp to the phone. It will stay the same.
Memory status is what the 'real-real' image size is on the phone. I guess it needs extra memory for the thumbnail and perhaps decompressing the jpeg (which it has to do ahead of time - perhaps it can't do it on the fly)... Hope it helps |
Ramsos
Joined: Nov 03, 2003
Posts: 11
From: Oakland California, USA
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dantec thanks for doing the research for me I guess I will come close to my goals with this phone. I will still be purchasing this phone before the weekend, then I can do some more test and post here about them. BTW I am a mac user too and I have heard that this phones works with macs like it was made for them, and that's a cool perk! |
Drevor
Joined: Sep 25, 2003
Posts: 20
PM |
ok ... again ...
-the phone stores the image file plus a decoded, rle kompressed version of that file for faster access plus a thumbnail of that pic for browsing
-reducing the filesize will help you reducing the overall image(s) size in your phone
-reducing the colorspace and optimizing the picture for rle kompression (octree is just a way doing that) will help ur phone to reduce the size of the rle kompressed version of ur image
.. so either:
small jpeg + "huge" rle kompressed inphone-copy
.. or:
"larger" .gif + "smaller" rle version
rle is a type of kompression where equal pixels are "grouped" to reduce the filesize
you may thest that by sending a gradient file to your phone and a blank one ...
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dantec
Joined: Mar 02, 2003
Posts: 264
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Quote:
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On 2003-11-05 05:18:53, Ramsos wrote:
dantec thanks for doing the research for me I guess I will come close to my goals with this phone. I will still be purchasing this phone before the weekend, then I can do some more test and post here about them. BTW I am a mac user too and I have heard that this phones works with macs like it was made for them, and that's a cool perk!
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Yup it does work great, with iSync. Sending files. Even answering calls and sms's through address book. You can also easily browse the web on a bluetooth mac with GPRS. |
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Posted: 2003-11-03 05:44
P910i 
