|06-05-2013, 11:06 PM||#31|
Join Date: Dec 2012
Location: Shannon, Ireland today
Device: iPhone 5/iPad 1&2/Surface Pro/Kindle PW
Try setting the width:6em (instead of height) and leave height:auto (or remove it as auto is default).
I know it is a little backwards to set width with a "height value" (em), but it works.
|06-06-2013, 02:05 AM||#32|
Join Date: Apr 2011
Device: Kindle Fire, Kobo Touch, Aldiko for Android
You're right. Completely counterintuitive but it works. Changed the em value from height to width. The images don't skew anymore when up- or down-sized, though 6em does not actually translate into 6 lines of text; more like five. Will tweak.
|06-06-2013, 03:49 AM||#34|
Join Date: Jan 2008
Location: Spaniard in Sweden
Device: Cybook Orizon, Kobo Aura
|06-06-2013, 06:51 AM||#35|
Join Date: Jul 2012
With black and white diagrams, the savings are even more pronounced than just these few color images (B&W/Grayscale/few colors compresses VERY well in PNG).
In this large project I am in the process of working on, I generated 175 very high quality (almost all were ~1200 px wide) PNGs of Tables/Charts/Diagrams. These compressed down to 9.10 MBs.
The equivalent 175 JPGs would be ~18 MBs (I just did a rough generation of JPGs from the original source). I could probably squeeze a few MBs out by optimizing the JPGs a little, but they will reach nowhere near 9.10 MBs.
JPG is a format built for "natural/photographic" images, and the algorithm is not the greatest when dealing with "artificial" type images.
When dealing with delivery fees and/or bandwidth costs for overly large book files, cutting needless MBs off of the book is very important!
|06-06-2013, 07:18 AM||#36|
Join Date: Apr 2008
Location: Central Oregon Coast
It would seem the most efficient would be some vector graphic format for such items, but I don't know how well they are supported.
|epub, frames, text box|
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