How to change the 2D array's size of a picture

[alii001]

I have read a jpg picture by LabVIEW and got 2D array data of it .

Now ,I need to change the size(the real pixel size , not the size shown in front pannel).

I have two method, one is to use array modules , one is to change the size of the 2D array, the other method is to resample the picture when reading it . But , each method is difficult for me ,I can not find the blocks from Labview back panel's modules. 

I had also seen the page https://knowledge.ni.com/KnowledgeArticleDetails?id=kA00Z0000019Ko3SAE&l=zh-CN,but nothing is done, because there are so many blocks ,(灬ꈍ ꈍ灬) .

any suggestion will be appreciate .

[alexderjuengere]

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@alii001 wrote:

I have two method, one is to use array modules , one is to change the size of the 2D array, the other method is to resample the picture when reading it . But , each method is difficult for me ,I can not find the blocks from Labview back panel's modules.

what have you tried?

https://en.wikipedia.org/wiki/Image_scaling

e.g. leave out every third row (shrinking)  or repeat every third row (expanding) of your input image?

[alii001]

I gave up, instead I use PS

[alexderjuengere · Accepted solution]

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@alii001 wrote:

I gave up, instead I use PS

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Photoshop?

how about:

https://zone.ni.com/reference/en-XX/help/371361R-01/gmath/interpolate_2d/

https://forums.ni.com/t5/LabVIEW/interpolating-a-2D-array/td-p/2962065

of course, this .vi is my favorite in terms of bilinear interpolation:

https://forums.ni.com/t5/LabVIEW/Interpolating-pixels-in-the-Intensity-Graph/m-p/283031?view=by_date...