Automated process to crop away certain pixels

How can I automate the process to crop away certain pixels from the edges of a batch of pictures of different dimension?
Example:
Picture 1 : 400 x 600px
Picture 2 : 360 x 480px
Picture 3 : 600 x 800px
I want to crop away 5px from each edge of each picture which would then end up being 390x590px, 350x470px and 590x790px respectively.

MichaelTeoh wrote:
I want to crop away 5px from each edge of each picture which would then end up being 390x590px, 350x470px and 590x790px respectively.
Example:
Picture 1 : 400 x 600px    = 400:600 = 4:6 = 2:3
Picture 2 : 360 x 480px    = 36:48 = 6:8 = 3:4
Picture 3 : 600 x 800px   = 3:4
So you can record the three action to center crop your images to the 2:3 and 3:4 aspect ratios shown in your examples then use image size to size them you three example pixel sizes then use canvas size to to trim the 5 px of the border, just set the canvas to you three sizes 390x590px 350x470px and 590x790px do not check relative and leave the anchor point in the center. Five pixels will be trimmed form all sides. Any image that started with the correct 2:3 or 3:4 aspect ratios will not be cropped by the first crop only the canvas size crop will trim pixels.
To handle both Portrait and Landscape image the action would need to record a fit image step instead of the image size step a fit image step fit to longest side need to be recorded and the canvas size would need to be recorded to trim both width and height by a relative -10px.   My AspectRatioSelection plugin will automatically orient the aspect ratio recorded to the images orientation.

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Am I hoping to do the impossible?
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some of the initial photo will be cropped, but if I could set it to
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MichaelTeoh wrote:
I want to crop away 5px from each edge of each picture which would then end up being 390x590px, 350x470px and 590x790px respectively.
Example:
Picture 1 : 400 x 600px    = 400:600 = 4:6 = 2:3
Picture 2 : 360 x 480px    = 36:48 = 6:8 = 3:4
Picture 3 : 600 x 800px   = 3:4
So you can record the three action to center crop your images to the 2:3 and 3:4 aspect ratios shown in your examples then use image size to size them you three example pixel sizes then use canvas size to to trim the 5 px of the border, just set the canvas to you three sizes 390x590px 350x470px and 590x790px do not check relative and leave the anchor point in the center. Five pixels will be trimmed form all sides. Any image that started with the correct 2:3 or 3:4 aspect ratios will not be cropped by the first crop only the canvas size crop will trim pixels.
To handle both Portrait and Landscape image the action would need to record a fit image step instead of the image size step a fit image step fit to longest side need to be recorded and the canvas size would need to be recorded to trim both width and height by a relative -10px.   My AspectRatioSelection plugin will automatically orient the aspect ratio recorded to the images orientation.

Is it possible to run process chain from the certain process/point?

Hello
Is it possible to run process chain from the certain process?
How?
Thanks

Hello,
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Reg
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Hi Chetan:
thanks alot for your response.
I have couple more questions for you if you don't mind.
The client I am working for looking for ways to send Report to Exec.
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Dear Dir ,
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Thank You in Advance.

Hi,
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Hey Everyone!
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Flow.xls ‏42 KB
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Thanks
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Sorry, best I could do with the title of this post.
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Last bit first:
So is this an example of how Previews would speed things up? If I had a Preview, Aperture wouldn't have to be manipulating the full size Master?
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regards

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Needed is the function the system calls to answer the question "what area of the input do I need in order to calculate a particular area of the output?".
I should do it to make sure no one changes those values before the output pixel is calculated.
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Should I assume that at default the outputRegion is actually the sampled pixel in the input?
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Let's say it's (4, 3) and the current pixel is (10, 10).
Don't think in terms of "current pixel" when you're looking at the needed function. The region functions are not called on a per-pixel basis, they are called once at the start of computing the frame, before we do the computation for each pixel.
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Yes - you're correct. Whatever size the output region is, you require an input region that has an additional border of 5 pixels all round to calculate it correctly.

Automated process to crop away certain pixels

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