En3502 customized material specifications

Customized materials specifications for Imaxel Photo Solution

Customized materials specifications EN3502

Imaxel Lab SL, 2005-2012 2

History

Date Doc version Description Author

01.03.2011 1.0 Created by Moises

Last update



TABLE OF CONTENTS INDEX

INDEX 3

Introduction 4

Materials 5

ClipArt’s ........................................................................................................................................... 5

Backgrounds .................................................................................................................................... 6

Masks ............................................................................................................................................... 7

Folder Structure to deliver 13



Introduction Purpose of this document is to define how the customer can make their own materials in order to include them into Imaxel software (Image Desk and Image Web). Imaxel will add these materials to Image Web software, while that the customer will add these materials for Image Desk software in case of the customer has the IDesk Wizard software. Purpose of this document is not to explain these processes in order to add these materials. Contact with Imaxel if you need help in that respect.



Materials Here we will define all the materials that the laboratory can customize. Imaxel will provide standard materials for this purpose, but laboratory is able to create their own materials. These materials will be available for full laboratory without any restriction by dealer.

ClipArt’s We agreed that the normal size of the ClipArt’s will be 50x50mm with a resolution of 254 DPI (500 x 500pix.). There are no restrictions but we don’t recommend using ClipArt’s smaller than this size. These files should be saved in PNG format with transparent background.



Backgrounds We agreed that the normal size of the backgrounds will be 50x50mm with a resolution of 254 DPI (500 x 500pix.). Take in consideration that these backgrounds will be replicated inside the design area in order to fill full design area. These files should be saved in PNG format. Not transparent background is required in these materials.



Masks Mask implementation Masks are made of two PNG file with alpha cannel (32 bits):

1. Motif file: Is the image printed itself on the photo.

2. Mask file: It’s an image used to mask an area of the photo. It’s generally agreed that software applications recognize a masked file because the file name ends with “_m”. A motif file and a mask file get associated because they share the same file name plus the suffix “_m”. For instance, when the motif file is “1.png”, it’s mask file will be “1_m.png” Both the motif file and the mask file are optional, so it’s possible that only the motif file (without mask) or only the mask file (without motif file) may exist. Both files must be in PNG format, with alpha cannel (32 bits) and must have the same pixel size, and must share the same folder. We agreed that the normal size of the masks will be 10x15 (102 x 152 mm) with a resolution of 254 DPI, which yields a size in pixels of 1520 x 1020 for a horizontal mask, and 1020 x 1520 for a vertical one. These sizes are for guidance only. An application doesn’t impose restrictions to the size, provided both files have the same size. When a mask is applied to a photo, the editor locks the frame ratio, keeping the ratio of the applied mask, so that the mask image doesn’t become distorted. This is why it’s recommended that the masks they get a ratio close to the pictures one, such as 0,65 or 0,75.



Examples

Motif file Mask file

Horizontal mask with motif and mask file.

1.png 1_m.png 1520 x 1020 pixels 1520 x 1020 pixels

Vertical mask with motif and mask file.

4.png 4_m.png 1020 x 1520 pixels 1020 x 1520 pixels

Solid mask without motif file.

Without motif image

4_m.png 1020 x 1520 pixels

Mask with transparencies, without motif file.

Without motif image

5_m.png 1020 x 1520 pixels



Steps to get the mask file

1. Starting from the motif file:

2. Adding a layer to the new image:

3. Filling new layer with opaque black:



4. Defining the visible area (not masked) and eliminating its content, by making the area

transparent. It’s recommended to leave a large margin to avoid problems when the client reduces the size of the frame.

5. Eliminating the layer of the motif.



6. Getting the mask image.

7. Finally, image is saved, in PNG format, with the same name of the motif file plus the suffix “_m”. For instance, for the motif file “1.png”, the mask file will be “1_m.png”.



How masking process works When the output image for each pixel of a photo, to which a mask has been applied, is composed, the reverse opacity value (binary negation) to the correspondent pixel value (same file and column) of the mask file is applied. For example, for an X Y pixel of the mask with a opacity value 0 (transparent), the output pixel value will be 255 (opaque), and for a pixel of the mask qith an opacity value of 255 (opaque), the output pixel will have an opacity value of 0 (transparent). The value of the mask image color doesn’t take part in the process, only the opacity value (alpha cannel).

Mask Photo Output

Transparent pixel Alpha ch.: 0 (00000000)

Opaque pixel Alpha ch.: 255 (11111111)



Opaque pixel Alpha ch: 255 (11111111)

Transparent pixel Alpha ch: 0 (00000000)

Tranlucent pixel Alpha ch.: 60 (00111100)


Tranlucent pixel Alpha ch.: 195 (11000011)



Folder Structure to deliver Graphic elements get organized in the application in this way:

\Material

\Cliparts

\Cliparts1

\Cliparts2

\Cliparts3

\Cliparts4

\Backgrounds

\Backgrounds1

\Backgrounds2

\Backgrounds3

\Backgrounds4

\Masks

\Masks1

\Masks2

\Masks3

\Masks4

Send us your materials keeping this folder structure, please.

En3502 customized material specifications

Software

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