How can I remove these blue lines without losing the color?

Question

I need to learn how to remove these blue lines without changing anything else.

Answer 1

Too much work to remove the line pattern. Make a new yourself.

It seems to be a big piece of chipwood with half transparent white overlay pattern. That pattern is easy to do in Illustrator (measurements only approximate)

• have a triangle, say 6 degrees angle in the sharpest corner, one long side is horizontal, grey fill, no stroke
• rotate the triangle 0,5 degrees
• rotate the triangle making 11 more copies in 7,5 degrees steps
• align all 12 triangles down & left to get the sharp corners to the same point
• copy twice with reflect to have a fan that covers full 360 degrees
• scale horizontally to smaller size to have elliptical pattern
• change the fill color to white
• add a clipping mask to have rectangular shape
• copy to photoshop to insert it over a photo of chipwood

I hadn't a good photo, so I used a flat color fill.

Photoshop is in theory not necessary at all for this job, but coloring is there easier.

Addendum: If you want to stay in Photoshop and want something fast, then:

• select all
• goto Filter > Blur > Radial Blur > Zoom, good quality, radius=60px
• fix (=clone) the middle area manually, if needed.
• add some grainy texture, if needed