CN102879100A

CN102879100A - Color discriminator

Info

Publication number: CN102879100A
Application number: CN2012103006142A
Authority: CN
Inventors: 范迪
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-22
Filing date: 2012-08-22
Publication date: 2013-01-16

Abstract

The invention is applicable to the technical field of electronic instruments, and provides a color discriminator, which includes an imaging unit, a processing unit and a reporting unit, wherein the imaging unit is used for obtaining a color image of an external object, the processing unit is used for determining a current dominant color of the color image, and the reporting unit is used for reporting the dominant color to a user in real time. According to the invention, a color image of the external object is obtained by the imaging unit, then the current dominant color of the color image is determined by the processing unit, and finally, the dominant color is reported to the user by the reporting unit in real time, therefore, the user can discriminate the current dominant color of the object through hearing, and great conveniences are brought to the user. The user can be a blind person, and can also be a common person who can not view the field directly.

Description

A kind of color identifier

Technical field

The invention belongs to electronic instrument technology field, relate in particular to a kind of color identifier.

Background technology

It has been mature technology that light signal is converted into electric signal through shooting, and electro-photographic is no longer fresh now.Electric signal converts light signal to through processing again and also just exists decades ago.But people still must be by the eye recognition external items color, give the ordinary people that can't be directly watches with eyes especially the blind person cause very big obstacle.

Summary of the invention

The purpose of the embodiment of the invention is to provide a kind of color identifier, and being intended to solve existing user must be by the problem of eye recognition external items color.

The embodiment of the invention is achieved in that a kind of color identifier, comprising:

In order to obtain the image-generating unit of external items coloured image;

In order to determine the processing unit of the current dominant color of described coloured image; And

In order to the report unit of the described dominant color of real-time broadcasting to the user.

The embodiment of the invention is obtained the external items coloured image by image-generating unit first, then determine the current dominant color of described coloured image by processing unit, at last by reporting the described dominant color of unit real-time broadcasting to the user, thereby make the user pass through the current article dominant color of Auditory identification, it is greatly convenient to give the user.Wherein, the user can be the blind person, also can be directly to watch on-the-spot ordinary people with eyes.

Description of drawings

Fig. 1 is the structural representation of the color identifier that provides of the embodiment of the invention;

Fig. 2 is the functional block diagram of the processing unit that provides of the embodiment of the invention;

Fig. 3 is another functional block diagram of the processing unit that provides of the embodiment of the invention;

Fig. 4 is the three primary colours space synoptic diagram that the embodiment of the invention provides.

Embodiment

In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.

The embodiment of the invention is obtained the external items coloured image by image-generating unit first, then determine the current dominant color of described coloured image by processing unit, at last by reporting the described dominant color of unit real-time broadcasting to the user, thereby make the user pass through the current article dominant color of Auditory identification.Wherein, the user can be the blind person, also can be directly to watch on-the-spot ordinary people with eyes.

Below in conjunction with specific embodiment realization of the present invention is described in detail.

Shown in Fig. 1 ~ 3, the color identifier that the embodiment of the invention provides comprises obtaining the image-generating unit 1 of external items coloured image, in order to the processing unit 2 of definite current dominant color of described coloured image and in order to the report unit 3 of the described dominant color of real-time broadcasting to the user.Wherein, described image-generating unit 1 can be video camera, also can be camera; Described coloured image is the two-dimensional digital signal array.Suppose that the user wonders the color of apple, at first with the close apple (being external items) of the camera lens of image-generating unit 1, obtained the coloured image of apple.Should be appreciated that same article have a large amount of close colors, have a large amount of close redness such as red apple, determine current dominant color by processing unit 2 this moment is red, by reporting unit 3 redness is reported to the user with the form of audio coding or voice.And for example granny smith has a large amount of close greens, and determine current dominant color by processing unit 2 this moment is green, by reporting unit 3 green is reported to the user with the form of audio coding or voice, thereby is made the user pass through the color of the various article of Auditory identification.

For ease of user's operation, experience stimulating unit by nerve first and convert each grey scale pixel value of described coloured image to stimulate the non-optic nerve of user electric signal, so that the user can differentiate the position of each article in the described coloured image.Then selected by the frame-choosing unit frame and need the identification colors article in the described coloured image, need not like this to make the camera lens of image-generating unit 1 near needing the identification colors article.Then select article to process by the aforementioned processing unit to institute's frame, to determine the needing current dominant color of identification colors article in the described coloured image.

Particularly, described nerve is experienced the pixel that stimulating unit has with coloured image stimulates contact array one to one, and wherein said stimulation contact array comprises a plurality of contact electrode in order to output electrical signals, for ground electrode that a plurality of contact electrode shared and with the electric insulation course of isolating of each contact electrode and ground electrode.It is that nerve among the CN 202270109U is experienced stimulator that the stimulating unit of experiencing this nerve adopts document number.

Usually, described processing unit 2 specifically comprises in order to calculating and according to the colour of each pixel red, green, blue three primary colours of described coloured image, and each pixel mapping of described coloured image is searched module 22 to the mapping block 21 in three primary colours space and in order to search in the described three primary colours space to the pixel of other pixel distance sum minimum.Wherein, the three dimensions of described three primary colours space system take the red, green, blue three primary colours as coordinate axis, the pixel color to other pixel distance sum minimum in the described three primary colours space is the current dominant color of described coloured image.In addition, described three dimensions is preferably the three dimensions that is made up by rectangular coordinate system.

For example, red value is 20 in the described coloured image a pixel color, green value is 50, blue valve 10, red value is 40 in the b pixel color, green value is 10, blue valve is 30, red value is 10 in the c pixel color, green value is 70, blue valve is 20,, by mapping block 21 with described coloured image A, B, C ... pixel color maps to the three primary colours space, as shown in Figure 4.Then, search in the described three primary colours space pixel to other pixel distance sum minimum by searching module 22.Suppose that described coloured image has 10,000 pixels, search one to the pixel of other pixel distance sum minimum in this 10,000 pixel, this pixel color is the current dominant color of described coloured image.

For promoting the speed of processing unit 2, can substitute the above-mentioned module 22 of searching by the module 23 that limits that the pixel that surpasses preset ratio (50%) in the described three primary colours space is fallen in the sphere institute limit scope herein.For example, as required the radius of scope that sphere is limit is decided to be the 40(colour).Be 40 sphere by mobile radius this moment, falls in this sphere institute limit scope if surpass 50% pixel in the described three primary colours space, then will be positioned at described sphere and limit the pixel color at scope center (being the centre of sphere) as the current dominant color of described coloured image.Should be appreciated that the parameter value that arrives used herein (50%, 40) is that the user is default according to self-demand, and non-quantitation.If the color of current article coloured image is comparatively mixed and disorderly, when described processing unit 2 can't be determined dominant color, by described report unit 3 prompting None-identifieds, or the prompting color mixed and gets final product.

As preferably, described report unit 3 can be hummer or loudspeaker.Hummer sound can be by different frequency, duration, volume and the number of times that pipes be combined to form certain specific color of coded representation.For example, if when current dominant color is mazarine, by hummer send that frequency is 1000, duration 0.1 second, volume 40DB, add frequency and be 2000, the buzzer of duration 0.2 second, volume 50DB or directly report out Deep Blue with voice by loudspeaker; If current dominant color is when pink, by hummer send that frequency is 2000, duration 0.1 second, volume 40DB, add frequency and be 1000, the buzzer of duration 0.1 second, volume 40DB or directly report out " pink " with voice by loudspeaker.Coding schedule of color formation of the various representatives that pipe of hummer is recited by the user and is got final product.

The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims

1. a color identifier is characterized in that, described color identifier comprises:

In order to obtain the image-generating unit of external items coloured image;

2. color identifier as claimed in claim 1 is characterized in that, described color identifier also comprises:

Experience stimulating unit in order to the nerve that each grey scale pixel value of described coloured image is converted to the electric signal that stimulates the non-optic nerve of user; And

Select the frame-choosing unit that needs the identification colors article in the described coloured image in order to frame.

3. color-aware instrument as claimed in claim 2, it is characterized in that, described nerve is experienced the pixel that stimulating unit has with coloured image stimulates contact array one to one, and wherein said stimulation contact array comprises a plurality of contact electrode in order to output electrical signals, for ground electrode that a plurality of contact electrode shared and with the electric insulation course of isolating of each contact electrode and ground electrode.

4. such as claim 1,2 or 3 described color identifiers, it is characterized in that described processing unit specifically comprises:

In order to calculate and according to the colour of each pixel red, green, blue three primary colours of described coloured image, with the mapping block of each pixel mapping of described coloured image to the three primary colours space; And

In order to search in the described three primary colours space module of searching to the pixel of other pixel distance sum minimum;

Wherein, the three dimensions of described three primary colours space system take the red, green, blue three primary colours as coordinate axis, the pixel color to other pixel distance sum minimum in the described three primary colours space is the current dominant color of described coloured image.

5. such as claim 1,2 or 3 described color identifiers, it is characterized in that described processing unit specifically comprises:

With falling into restriction module in the sphere institute limit scope so that surpass the pixel of preset ratio in the described three primary colours space;

Wherein, the three dimensions of described three primary colours space system take the red, green, blue three primary colours as coordinate axis is positioned at described sphere and limits the pixel color at scope center to be the current dominant color of described coloured image.

6. color identifier as claimed in claim 4 is characterized in that, described three dimensions is the three dimensions that is made up by rectangular coordinate system.

7. color identifier as claimed in claim 5 is characterized in that, described three dimensions is the three dimensions that is made up by rectangular coordinate system.

8. such as claim 6 or 7 described color identifiers, it is characterized in that described coloured image is the two-dimensional digital signal array.

9. color identifier as claimed in claim 8 is characterized in that, described report unit is hummer or loudspeaker.