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My First attempt at Custom Wallpapers

By JasonH · Feb 20, 2006in Hacks/Mods💬 7 posts👁️ 4,005 views
Posted Feb 20, 2006 · 23:37 UTC#1
First Attempt at Custom Wallpapers
User image
EDIT:Forgot Screenshot /\ :wink:
Posted Feb 21, 2006 · 02:11 UTC#2
do you have a screen shot of this?

i would be interested in doing a vette background on mine.
Posted Feb 21, 2006 · 02:31 UTC#3
Sure, I guess I forgot to link it when i posted the file. It should be above the file now. :oops:
Posted Feb 21, 2006 · 12:20 UTC#4
badazz! 8)


how do you upload that to the d1?
Posted Feb 21, 2006 · 18:34 UTC#5
You need a sticky for this, with a title some like "Changing D1 displays for dummies" :D
Posted Feb 21, 2006 · 22:20 UTC#6
ohlarikd from the12volt.com found a program to open the pim's in COLOR!
We have finally cracked the D1's image format!

Here are all the D1's wallpapers in JPEG:
http://jasonhilton.us/d1/backgrounds/finished/
Posted Feb 22, 2006 · 15:59 UTC#7
Some more general info:

The PIM files have 16 byte headers. They are 16-bit color, with each pixel represented by two bytes in a 5:5:6 bit RBG pattern. Jason was the first to discover that they can be opened as RAW files in Photoshop, but they come out as grayscale. Photoshop can't import 16-bit color RAW files. We have since figured out that Irfanview can read these files using the RAW input format in color because it allows many more import options. Either rename the PIM file to RAW, or select the option 'Open as RAW'.

So the problem we have now is that although we can open them, we can't save them back as 16-bit 5:5:6. I tried Irfanview, Photoshop, Paint Shop Pro, Paint, Sony Picture Gear Lite, Corel Paint. All save as 24-bit color which cannot be read properly by the D1. At least I assume so.

So anyone out there know of a paint / photo application that can read and write 16-bit 'high color (65535 color)' images?? Actually, we just need the SAVE option. You can work with 24-bit color in Photoshop, save the image as 24-bit RAW. Then import it into the as-yet-unknown application and resave it as 16-bit 5:5:6. Then you need to add on the 16-byte PIM header that can taken from any PIM file using HackMan Hex Editor.

We'll figure it out soon. I emailed the Irfanview guys to see if they can make a version that allows this....


Derek
2005 Dodge RAM 2500 QC
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AVIC-D1 with V1.2 Nav Disc