Make a black lined digi to white lined in PS

Hi Everyone, after a terrific response to my "faux vellum card". I have been asked if I would share the information, so here goes, hope you understand it, any questions, please contact me and I will try and let you know. I am a learner with PS too and look out for answers and tutorials to let me do what I want to do. This started with an answer to a question of mine off the web, I'm sorry now I didn't save the info of the "forum" it was off, I just copied what I wanted to know. Anyhow here goes. It's SO VERY EASY.

Here are the instructions I got off the web, I then did screen save to show you what happened. I hope one version or other helps.

Make sure you have a nice, high resolution scan and then go:

Image -> Adjustments -> Threshold and drop out and soft edges.

Then:

Select -> Color Range and use the eye dropper to pick up the black. You now have all the linework selected.

Layer -> New -> Layer via Cut

Your linework is now selected and is on a layer of its own. Either use the selection or lock transparency on the layer and fill with the colour of your choice.

Fill the previous layer with your preferred background colour.

This my screen shot version

Open a new file I made mine 6 inches x 6 inches or 150mm x 150mm.

Open or drag the digital stamp you want to use onto the canvas. You will now have 2 layers your canvas or background layer and your digital stamp. If you have added a white canvas background layer, press the eye next to the layer and this will make it invisible for the time being. (I also have the DS4J logo, which you won't have of course.)

Select the digi stamp layer go to IMAGE > Adjustments > Threshold and drop out and soft edges.

I use CS6 so I only had threshold with a bar to alter the numbers, I changed mine to 238. As you change the numbers, you will see the image becoming more definite. You need to alter it depending on the image you use, click OK. 

 Don't worry nothing shows yet! 

Go to Select > Colour Range and use the eye dropper to pick up the black. 

you will now have all your linework selected, click OK

Go to Layer > New > Layer via cut (I hadn't seen this before either!) Your line work is now selected. There will be marching ants around the digi. Click OK

 Your line work selection is on a layer of it's own. (Either use the selection or lock transparency on the layer and fill with the colour of your choice. )

At this point the digital stamp image layer shows it as a filled with white image (Above - I have made the new layer invisible to show you what happens).

Select the new layer (Below - I have made the digi stamp invisible to show you).

Go to Lock and select Lock  > Transparent pixels (the square box beside the Lock).

You will see a padlock beside the name on the layer after doing this.

Go to Edit > Fill with white (OOPS! didn't lock the layer first!)

This will be your result (you can see the padlock on the photo)

Select your background layer and with the paint bucket fill with a dark colour This can be done either by choosing your colour and using the paint bucket, OR going to Edit > Fill > Colour > OK - voilà

I then did the following, I haven't shown it all, as I thought you had had enough by now, but if you want more info, again you can contact me.

•  New Layer - add a patterned paper, below the white digital stamp layer you have just changed.
• New Layer - add the same patterned paper and reduced the size to centre it on top of the original patterned paper. I added a shadow to enhance it.
• New Layer - add a vellum paper, mine with glitter was from Elle Designs,  (I'm sure if you use a search engine you should find one or similar.) 
• Using the marquee tool, with the vellum layer selected, select the size of the reduced paper layer  > copy ctrl C > paste  ctrl V > (you will see the new layer shows whiter,) now make the original vellum layer invisible, by pressing on the layer eye. 
• Centre the reduced paper and the reduced vellum with each other. I added a low shadow effect to the vellum to replicate paper.
• Bring the, now white, digital stamp layer to the front and duplicate it. I added a low shadow to them, to appear embossed.
• Reduce the size of the white digi layer to fit the corner of the reduced papers. 
• Duplicate the layers and EDIT > Transform > Rotate 180 degrees, move them to the top right corner.
• There we are, you have completed your vellum overlay.

Adding the low shadow to the white digital stamp

 Showing ALL the layers used

 Finished and ready for printing, I printed the reduced patterned paper, the vellum and digitamps as one layer. Then printed the background layer .