Android: How to save the filtered image as a file?

Question

all I want to make a filter just like what instagram's. I use an ImageView with colorFilter to accomplish the effect, but I don't know how to save the filtered image as a file. If I savethe bitmap directly, the original bitmap was stored without filter effect. If I store the imageview's pixels, its size is not as the same as the bitmap. And I dont want to calculate pixel by pixel for a new bitmap for effect reason. I was blocked on this problem for days.Would anybody help me ? Thanks. BR QiuPing

score 0 · Answer 1 · edited May 23 '17 at 10:34

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I think this might be of help to you. Check out the Saving Internal and Saving External sections.

http://developer.android.com/guide/topics/data/data-storage.html

You're going to want to get your image into a bitmap, like this:

Save bitmap to location

edited May 23 '17 at 10:34

Community

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answered Aug 23 '12 at 14:16

Michael

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score 0 · Accepted Answer · answered Oct 25 '12 at 07:01

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I found a better solution now. I used a Canvas on the original bitmap, and paint with ColorMatrixColorFilter. Different ColorMatrixColorFilter take different use. Changing brightness, changing saturation, changing contrast. Make combinations, then filters were created.

answered Oct 25 '12 at 07:01

qiuping345

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How you saved the bitmap because when i try to get bitmap all my ColorFilters are removed... – Mohammed Rampurawala Dec 18 '17 at 07:37
this is something written 5 years ago. sorry I could not find it now. – qiuping345 Dec 18 '17 at 18:54
Thanks I have figured that out :) – Mohammed Rampurawala Dec 19 '17 at 10:16

Android: How to save the filtered image as a file?

2 Answers2