Travel Photography group posting on GLOBOsapiens

how to compress the photos

Postings 11 - 18 of 18

Page: 1 2

rangutan Premium account Joined: Aug 04 Points: 34752 Posts: 1044 Posted: 2006-03-12 10:57:00    We need professional advice on this. Perhaps staff or can help. The file size is NOT reduced by reducing the picture size only! The most successful way of reducing the file size is by compression (recoding the picture information). Most simple example is the compression is that for 10 rows of 1200 blue dots at the top of a picture representing sky, instead of the computer storing that info as "blue dot, blue dot, blue dot , blue dot , blue dot .............. " is says simply "12000 blue dots". There are hundreds of other short cuts built into new compression programs. The mere difference between how *.bmp and *jpg pictures store there information shows this, it is vast but it goes much further - in the above example a shorter command would be "12kbd" and further the number 12 can be replaced by one symbol! Other tricks by programs is to reduce the amount of colours and shades and to recalculate neighbouring colours by interpolation. The process is much complicated than my simple example above but hope helps to understand that. To save disc space, does staff really want everyone to upload their pictures exactly 600x400 or 600x800 and optimise to the lowest possible file size, say 20kB? For those with slow modems that helps upload times but is not practicable. The GLOBOsystem OPTIMISES and stores pictures for the fastest and best-as-possible WEB output quality. Some members forget that that a photoprint, monitor and TFT display pictures differently at various sizes. Also, if a picture is changed 2 or 3 times, every time quality is lost. If the change involves saving file size, automatically quality is lost. I take digital pictures (or mostly scan prints) at 1200x800 (enough for home use), compress 50% to give a file size of 100-300 kB and the GLOBOsystem does the rests of optimisation with enough pixels to work with. I cannot understand why some members take 1MB pictures at 3600x2400 then reduce to 800x600, the GLOBOsystem further changes those FEW pixels and then he/she wonders why the web picture does’t look as good! Video with sound is then a better solution than 3600x2400 posters if one wants to catch the REAL situation! RR [ This Message was edited by: rangutan on 2006-03-12 11:02 ] --- Rudolf "Rangutan" Graspointner Reply    Reply with quote    Contact rangutan   st.vincent Joined: Mar 06 Points: 2322 Posts: 23 Posted: 2006-03-12 11:21:00    This forum thread has helped me as I’m a novice to both GLOBO and digital photography. With my current FinePix F455 I tend to take photos at the 2MP setting which gives 1600 x 1200 pictures with a size of around 600Kb so I have to do a bit of resizing/compressing. From what has been said it seems that taking photos at a higher MP setting would mean a lower quality once it has been resized by me and then further optimised by the GLOBO system. Thanks Clive Reply    Reply with quote    Contact st.vincent   andreas Joined: May 02 Points: 8309 Posts: 808 Posted: 2006-03-13 11:10:00    Hi everybody, not sure if this was mentioned since I could not read all the text. Try irfanview (do a search on that at a search engine). Its free and you can place all your pictures in one directory, assign working tasks to it and run it by the click of a button. So putting your pictures into GLOBOfriendly format will take you one time to put the instructions for the programm together and in the future you will have hundreds of them ready within 5 seconds! Best regards, Andy Reply    Reply with quote    Contact andreas   ravinderkumarsi Premium account Joined: Aug 04 Points: 14003 Posts: 451 Posted: 2006-03-14 05:03:00    hii Andy thanks for the message,about irfan view Akhila mentioned to me ,but i didnt try it as i never head about it ,also was bit reluctant as it may be a spyware. any way i will try now after you have mentioned it ravi --- at bangalore /back 2 globo after a long Reply    Reply with quote    Contact ravinderkumarsi   maehof Joined: Oct 04 Points: 1796 Posts: 21 Posted: 2006-07-18 10:31:00    hello , fellow technicians, i use little freeware called thumbmaker by oscar's - http://www.mediachance.com/free/thumber.htm , its so small you can keep it on your memory stick or as a atachment in your email. its very simple and colours and quality are practicly the same as original , you can change size in no time (and quality of jpg compression if that is necesary but i would'nt), this is very easy and useful when internet cafes dont have professional software ( adobe photoshop) and after weeks of traveling only thing you have is memory stick . good luck , --- martin7 at redbubble , , , also dobrezyczenia dot com :) Reply    Reply with quote    Contact maehof   ravinderkumarsi Premium account Joined: Aug 04 Points: 14003 Posts: 451 Posted: 2006-07-18 11:38:00    hii mahe ,well i will try this and then give you the reply till now i am using the ms picture package --- at bangalore /back 2 globo after a long Reply    Reply with quote    Contact ravinderkumarsi   mistybleu Premium account Joined: Aug 04 Points: 53340 Posts: 245 Posted: 2006-07-18 22:24:00    I tend to use MS Photo Editor and resize pitures making sure smooth is highlighted so that it changes the size and not dimensions. But I must add, I came across Google's Picasso after watching a TV programme reviewing the best free photo editiing software, and this package got 5/5. It's quite userfriendly and fun to use. I like it. Amanda --- "So many places, so little time" ((*_*)) Reply    Reply with quote    Contact mistybleu   ravinderkumarsi Premium account Joined: Aug 04 Points: 14003 Posts: 451 Posted: 2006-07-19 11:47:00    i never heard of this any way this weekend i will try this too ravi --- at bangalore /back 2 globo after a long Reply    Reply with quote    Contact ravinderkumarsi   Page: 1 2