Kindle Images
Hi,
While playing around with this I worked out the following method, I'm using photoshop but perhaps someone who uses a different application can adapt it for that?
Part 1 - Image size
So as I'm going to create a screensaver image, I resize my image to 800x600 and set the DPI to 72.
NB If you want to create an image for in-book use, use 640x525 and 72 DPI.
1) Image -> Image size
2) Height 800
3) Resolution 72
Part 2 - Convert to Grayscale (or Greyscale)
Next we need to convert it to a gray scale, there are numerous ways to do this depending on how fussy you are (i.e. how much data you want to preserve) but here are a couple of methods below.
Method 1
1) Image menu -> Mode - Grayscale
2) Select yes to discard the colour information
NB: With this method, you don't get to tweak the image before it's converted
Method 2
1) Image menu -> adjustments -> Channel mixer
2) Tick the monochrome box
3) Move the sliders around until your happy
4) Click OK
NB: This method allows you to tweak before conversion
Method 3
1) Image menu -> Adjustments -> Black and White
2) Move the sliders around until you're happy
3) Click OK
NB: Also allows adjustments to the image.
Method 4
1) Image menu - adjustments -> Desaturate
NB: No tweaking to image
Part 3 - Additional Tweaking
The following tweaks seemed to improve the image for me once it was displayed on the Kindle but YMMV, so really the best is to just try for yourself and see what suits you.
1) Select Menu - Select All
2) Filter Menu - Sharpen - Sharpen Edges
3) Image Menu - adjustments - Brightness/Contrast
4) Pump the contrast all the way up to 100% or what looks good to you
Part 4 - Saving
Now we need to make sure that its a 16 shade image
1) File - Save for Web and Devices (Older Photoshop versions should be save for web)
2) In the window that appears, set the following
i) Type to PNG-8
ii) Colours to 16
iii) Change Selective to Perceptual (or Greyscale)
iv) Change Dither type from Diffusion to Noise
v) Turn transparency off
3) Press Save (Not Done, done just returns you back into Photoshop)
4) Select where you want to save the file and press Save again.
Part 5 - Get the file on to your Kindle
NB: You need to have performed the Jailbreak and Screensaver hack to do this. Steps for this are available in the forum.
1) Connect your Kindle to the computer via USB
2) Once mounted open the Kindle "drive" and located the linkss folder, double-click it
3) Inside the linkss folder, you will see a screensavers folder, double-click it
4) Drag your image (or images) from where ever you saved it, into the open screensavers folder
5) Unmount/Eject your Kindle from the computer
Part 6 - View the Screensavers
1) Press Menu -> Settings
2) On the Settings screen press Menu - Restart
3) Your Kindle will restart, this may take around 30 seconds, don't panic just wait, eventually the Amazon Kindle startup screen will appear
4) Once booted you may have a blank screen or blank homepage, again just wait around 10 seconds or so, you're books and collections will re-appear.
5) Your new screensavers should now be visible when the device sleeps.
Hope this is useful for some of you. I don't claim that my method is the best but it works for me at least but if any of you have a better/faster method, please let us know or if you find a way to improve mine.
While playing around with this I worked out the following method, I'm using photoshop but perhaps someone who uses a different application can adapt it for that?
Part 1 - Image size
So as I'm going to create a screensaver image, I resize my image to 800x600 and set the DPI to 72.
NB If you want to create an image for in-book use, use 640x525 and 72 DPI.
1) Image -> Image size
2) Height 800
3) Resolution 72
Part 2 - Convert to Grayscale (or Greyscale)
Next we need to convert it to a gray scale, there are numerous ways to do this depending on how fussy you are (i.e. how much data you want to preserve) but here are a couple of methods below.
Method 1
1) Image menu -> Mode - Grayscale
2) Select yes to discard the colour information
NB: With this method, you don't get to tweak the image before it's converted
Method 2
1) Image menu -> adjustments -> Channel mixer
2) Tick the monochrome box
3) Move the sliders around until your happy
4) Click OK
NB: This method allows you to tweak before conversion
Method 3
1) Image menu -> Adjustments -> Black and White
2) Move the sliders around until you're happy
3) Click OK
NB: Also allows adjustments to the image.
Method 4
1) Image menu - adjustments -> Desaturate
NB: No tweaking to image
Part 3 - Additional Tweaking
The following tweaks seemed to improve the image for me once it was displayed on the Kindle but YMMV, so really the best is to just try for yourself and see what suits you.
1) Select Menu - Select All
2) Filter Menu - Sharpen - Sharpen Edges
3) Image Menu - adjustments - Brightness/Contrast
4) Pump the contrast all the way up to 100% or what looks good to you
Part 4 - Saving
Now we need to make sure that its a 16 shade image
1) File - Save for Web and Devices (Older Photoshop versions should be save for web)
2) In the window that appears, set the following
i) Type to PNG-8
ii) Colours to 16
iii) Change Selective to Perceptual (or Greyscale)
iv) Change Dither type from Diffusion to Noise
v) Turn transparency off
3) Press Save (Not Done, done just returns you back into Photoshop)
4) Select where you want to save the file and press Save again.
Part 5 - Get the file on to your Kindle
NB: You need to have performed the Jailbreak and Screensaver hack to do this. Steps for this are available in the forum.
1) Connect your Kindle to the computer via USB
2) Once mounted open the Kindle "drive" and located the linkss folder, double-click it
3) Inside the linkss folder, you will see a screensavers folder, double-click it
4) Drag your image (or images) from where ever you saved it, into the open screensavers folder
5) Unmount/Eject your Kindle from the computer
Part 6 - View the Screensavers
1) Press Menu -> Settings
2) On the Settings screen press Menu - Restart
3) Your Kindle will restart, this may take around 30 seconds, don't panic just wait, eventually the Amazon Kindle startup screen will appear
4) Once booted you may have a blank screen or blank homepage, again just wait around 10 seconds or so, you're books and collections will re-appear.
5) Your new screensavers should now be visible when the device sleeps.
Hope this is useful for some of you. I don't claim that my method is the best but it works for me at least but if any of you have a better/faster method, please let us know or if you find a way to improve mine.
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