Removing Grid From Photo Or Drawing

I've been to a few art exhibits and chatted with a few artists. Techniques for guides are non-photo blue pencils, or just inking over the pencil lines with waterproof ink and erasing the "pencils" with a kneaded rubber eraser. An art teacher should help you fine-tune things, or YouTube should have excellent tutorials.
Photoshop comes in handy if you want to trace on to a separate layer using a Wacom tablet and any of the many pencil brushes provided by Photoshop and third parties.

Have you managed to progess sufficiently with the drawings that you can post something meaningful? 

why would even consider making a grid using the same pencil that you're drawing on top of it with? There are so many different ways to do this, but you've chosen the most difficult one to fix. Why?

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@gregn29157636 wrote:

"If you create a graphite drawing on paper using a grid that you drew on the same paper, how can you remove the grid in Photoshop and refill the gaps from where the grid was at? ... Please show visual examples of your solutions. Thank you."

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The answer is: it depends on the specifics which we have not been shown.

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@gregn29157636 wrote:

"Please show visual examples of your solutions. Thank you."

 

"And I can't make any new drawings to illustrate what I am talking about because I don't have the time. I have a job and personal projects with deadlines."

Greg, did you really mean to say that you want the volunteers on this forum to show visual examples of our "solutions" when you do not have the time to show a visual example of the problem you are having?

Jane

Yes, a start would be to try applying a b&w adjustment layer, with the blend mode set to luminosity, then increase all the colors to attempt to make them white.

Frankly, if you're doing this type of work, you should be making your grid with a non reproducing blue pencil. Super easy to remove. 

If your drawing were in grey graphite, and your grid were a light primary color like cyan or yellow, or with old school graph paper, the grid would drop out of the complementary color channel(s), but the grey drawing would remain.

Unmesh Dinda has some interesting techniques to select and remove a fence from in front of a subject, then use Content-Aware Fill to fill in the thin grid left behind by the removed fence. Some of the techniques shown in his video might help with a paper grid. It should be easier with a grid than a fence, because the fence wires weave and wrap which requires manual painting, while a paper grid is just easy straight lines. It should go rather quickly to draw the grid of perfectly straight lines using the Line or Pen tool, then convert that into a selection for Content-Aware Fill. (Edit: I like c.pfaffenbichler’s suggestion of using Edit > Define Pattern to make a grid pattern as the basis for the selection!)

Without seeing your image, you can try using levels to crank up the contrast making the backround - the paper pure white and the lines as close to pure black as you can get them. You can try using the posterize or threshold adjustments layers to isolate the lines. You can try using the spot healing brush. Look in the channels to see if they stand out in one and make a selection that way. Without seeing what you are trying to do, it's all going to be a shot in the dark.

You could also use the Heal Brush. Of course if you have a lot of grid lines, this may take some time.